Volatiles are a fundamental component of the Magmatic-Hydrothermal model of platinum group element (PGE) ore deposition for PGE deposits in layered mafic intrusions such as Bushveld and Stillwater. Volatiles have the potential to complex with PGEs in silicate melts and hydrothermal fluids, increasing PGE solubility; in order to assess the models of PGE ore deposition reliable estimates on the solubilities in the various magmatic phases must be known. However, experimental studies on the solubility and partitioning behaviour of PGEs in mafic magmatic-hydrothermal systems under relevant conditions are sparse, and the data that do exist produce conflicting results and new or adapted experimental methods must be applied to investigate these systems. Experimental results are presented here, investigating the effect of volatiles (i.e. H2O, Cl and CO2) on Pt and Ir solubility in a haplobasaltic melt and fluid-melt partitioning of Pt between an aqueous fluid and a haplobasaltic melt under magmatic conditions using a sealed-capsule technique. Also included are the details of the development of a novel experimental technique to observe fluid-melt partitioning in mafic systems and application of the method to the fluid-melt partition of Pt. Solubility experiments were conducted to assess the effect of volatiles on Pt and Ir solubility in a haplobasaltic melt of dry diopside-anorthite eutectic composition at 1523K and 0.2GPa. Synthetic glass powder of an anhydrous, 1-atm eutectic, diopside-anorthite (An42-Di58) haplobasalt composition was sealed in a platinum or platinum-iridium alloy capsule and was allowed to equilibrate with the noble metal capsule and a source of volatiles (i.e. H2O, H2O-Cl or H2O-CO2) at experimental conditions. All experiments were run in an internally-heated pressure vessel equipped with a rapid quench device, with oxygen fugacity controlled by the water activity and intrinsic hydrogen fugacity of the autoclave (MnO-Mn3O4). The resultant crystal- and bubble-free run product glasses were analyzed using a combination of laser ablation ICP-MS and bulk solution isotope-dilution ICP-MS to determine equilibrium solubilities of Pt and Ir and investigate the formation and contribution of micronuggets to overall bulk determined concentrations. In water-bearing experiments, it was determined that water content did not have an intrinsic effect on Pt or Ir solubility for water contents between 0.9 wt. % and 4.4 wt. % (saturation). Water content controlled the oxygen fugacity of the experiment and the resulting variations in oxygen fugacity, and the corresponding solubilities of Pt and Ir, indicate that over geologically relevant conditions both Pt and Ir are dissolved primarily in the 2+ valence state. Pt data suggest minor influence of Pt4+ at higher oxygen fugacities; however, there is no evidence of higher valence states for Ir. The ability of the sealed capsule technique to produce micronugget-free run product glasses in water-only experiments, allowed the solubility of Pt to be determined in hydrous haplobasalt at lower oxygen fugacities (and concentrations) then was previously observed. Pt and Ir solubility can be represented as a function of oxygen fugacity (bars) by the following equations: [Pt](ppb)= 1389(fO-sub-2)+7531(fO-sub-2)^(1/2) [Ir](ppb)=17140(fO-sub-2)^(1/2) In Cl-bearing experiments, experimental products from short run duration (<96hrs) experiments contained numerous micronuggets, preventing accurate determination of platinum and iridium solubility. Longer run duration experiments showed decreasing amounts of micronuggets, allowing accurate determination of solubility; results indicate that under the conditions studied chlorine has no discernable effect on Pt solubility in the silicate melt from 0.6 to 2.75 wt. % Cl (saturation). Over the same conditions, a systematic increase in Ir solubility is found with increasing Cl content; however, the observed increase is within the analytical variation/error and is therefore not conclusive. If there is an effect of Cl on PGE solubility the effect is minor resulting in increased Ir solubilities of 60% at chlorine saturation. However, the abundance of micronuggets in short run duration experiments, which decreases in abundance with time and increases with Cl-content, offers compelling evidence that Cl-bearing fluids have the capacity to transport significant amounts of Pt and Ir under magmatic conditions. It is suggested that platinum and iridium dissolved within the Cl-bearing fluid are left behind as the fluid dissolves into the melt during the heating stages of the experiment, leaving small amounts of Pt and Ir along the former particle boundaries. With increasing run duration, the metal migrates back to the capsule walls decreasing the amount of micronuggets contained within the glass. Estimates based on this model, using mass-balance calculations on the excess amount of Pt and Ir in the run product glasses (i.e. above equilibrium solubility) in short duration experiments, indicate estimated Pt and Ir concentrations in the Cl-bearing fluid ranging from tens to a few hundred ppm, versus ppb levels in the melt. Respective apparent (equilibrium has not been established) partition coefficients (D,fluid-melt) of 1x10^3 to 4x10^3 and 300-1100 were determined for Pt and Ir in Cl-bearing fluids; suggesting that Cl-bearing fluids can be highly efficient at enriching and transporting PGE in mafic magmatic-hydrothermal ore-forming systems. Platinum solubility was also determined as a function of CO2 content in a hydrous haplobasalt at controlled oxygen fugacity. Using the same sealed capsule techniques and melt composition as for H2O and Cl, a hydrous haplobasaltic melt was allowed to equilibrate with the platinum capsule and a CO2-source (CaCO3 or silver oxalate) at 1523 K and 0.2 GPa. Experiments were conducted with a water content of approximately 1 wt. %, fixing the log oxygen fugacity (bars) between -5.3 and -6.1 (log NNO = -6.95 @ 1573 K and 0.2 GPa). Carbon dioxide contents in the run product glasses ranged from 800-2500 ppm; and over these conditions, CO2 was found to have a negligible effect on Pt solubility in the silicate melt. Analogous to the Cl-bearing experiments, bulk concentrations of Pt in CO2-bearing experiments increased with increasing CO2 content due to micronugget formation. Apparent Pt concentrations in the H2O-CO2 fluid phase, prior to fluid dissolution, were calculated to be 1.6 to 42 ppm, resulting in apparent partition coefficients(D,fluid-melt) of 1.5 x 10^2 to 4.2 x 10^3, increasing with increasing mol CO2:H2O up to approximately 0.15, after which increasing CO2 content does not further increase partitioning. As well, a novel technique was developed and applied to assess the partitioning of Pt between an aqueous fluid and a hydrous diopside-anorthite melt under magmatic conditions. Building upon the sealed-capsule technique utilized for solubility studies, a method was developed by adding a seed crystal to the capsule along with a silicate melt and fluid. By generating conditions favourable to crystal growth, and growing the crystal from the fluid, it is possible to entrap fluid inclusions in the growing crystal, allowing direct sampling of the fluid phase at the conditions of the experiment. Using a diopside seed crystal with the diopside-anorthite eutectic melt, it was possible to control diopside crystallization by controlling the temperature, thus allowing control of the crystallization and fluid inclusion entrapment conditions. Subsequent laser ablation ICP-MS analysis of the fluid inclusions allowed fluid–melt partition coefficients of Pt to be determined. Synthetic glass powder of an anhydrous, 1-atm eutectic, diopside-anorthite (An42¬Di58) haplobasalt composition (with ppm levels of Ba, Cs, Sr and Rb added as internal standards), water and a diopside seed crystal were sealed in a platinum capsule and were allowed to equilibrate at experimental conditions. Water was added in amounts to maintain a free fluid phase throughout the experiment, and the diopside crystal was separated from the melt. All experiments were run in an internally heated pressure vessel equipped with a rapid-quench device, with oxygen fugacity controlled by the water activity and intrinsic hydrogen fugacity of the autoclave (MnO-Mn3O4). Experiments were allowed to equilibrate (6-48 hrs) at experimental conditions (i.e. 1498K, 0.2 GPa, fluid+melt+diopside stable) before temperature was dropped (i.e. to 1483K) to induce crystallization. Crystals were allowed to grow for a period of 18-61 hours, prior to rapid isobaric quenching to 293K at the conclusion of the experiment. Experimental run products were a crystal- and bubble-free glass and the diopside seed crystal with a fluid-inclusion-bearing overgrowth. Analysis of fluid inclusions provides initial solubility estimates of Pt in a H2O fluid phase at 1488 K and 0.2 GPa at or near ppm levels and fluid melt partition coefficients ranging from 2 – 48. This indicates substantial metal enrichment in the fluid phase in the absence of major ligands such as carbonate or chlorine. The results of this study indicate that the volatiles studied (i.e. H2O, CO2, and Cl) do not have a significant effect on Pt and Ir solubility in a haplobasaltic melt at magmatic conditions. These results suggest that complexing of Pt and Ir by OH, Cl, and carbonate species in a haplobasaltic melt is insignificant and the presence of these volatiles will not result in significantly increased PGE contents over their dry counterparts, as has been suggested. Preliminary evidence of minor Cl-complexing of Ir is presented; however, resulting in only a slight increase (<100%) in Ir solubility at Cl-saturation. Significant partitioning of Pt and Ir into a fluid phase at magmatic conditions has been demonstrated; with estimates of fluid-haplobasaltic melt partition coefficients increasing from 1x10^1 for pure water to up to an apparent 4x10^3 with the addition of Cl or CO2 to the system. This result indicates complexing of Pt and Ir with OH< HxCOy≤ Cl. Using these estimates, Cl- or CO2-bearing magmatic fluids can be highly efficient at enriching and transporting platinum group elements (PGEs) in mafic magmatic-hydrothermal ore-forming systems.

Denna eventstudie syftar till att undersöka hur ett byte av noteringslista påverkar kumulativ onormal avkastning (CAR) 1 till och med 12 månader efter genomfört byte. I studien undersöks därför utförda byten av noteringsplats på den svenska aktiemarknaden under tidsperioden 1995-2009. I studien beräknas onormal avkastning delvis med marknadsmodellen (MM) som grund, men också med Fama &amp; French tre-faktormodell (FF) för att öka reliabiliteten. Vidare undersöks om skillnader i CAR föreligger under olika tidsintervall samt om olikheter förekommer efter att berörda företag delats in i undergrupper baserade på typ av byte, industri samt storlek. Slutligen testas utifall den eventuella kumulativa onormala avkastningen är signifikant skild från noll med student t-test samt om det föreligger skillnader i medelvärde i de olika undergrupperna. Resultatet visar att den genomsnittliga kumulativa onormala avkastningen (CAR) uppgår till – 4,57 % (MM), - 3,74 % (FF) en månad efter bytet, vilket är signifikant på 1 % - nivån. Denna negativa tendens håller i sig och efter 12 månader uppvisas CAR på – 20,20 % (MM), -16,99 % (FF) även dessa statistisk säkerställda på 1 % - nivån. Detta resultat är i linje med liknade studier på andra aktiemarknader. Vi kan alltså dra slutsatsen att detta fenomen även föreligger på den svenska aktiemarknaden samt konstatera att händelsen listbyte är något både företag och aktieägare bör beakta mer varsamt.

It is well-established that personality not only affects physical health and longevity, but also mental health and coping mechanisms. One area of limited research is the relationship between cancer pain and personality. This study examined how personality traits affect reported cancer pain severity in older patients (N = 150) receiving outpatient treatment at a comprehensive cancer center. Participants were interviewed regarding their pain severity, personality, affect, and self-efficacy for pain management. Symptom data were collected from the Brief Pain Inventory, while personality data were gathered from the Ten Item Personality Inventory and the Positive and Negative Affect Schedule. Self-efficacy for pain management was collected from the Chronic Pain Self-efficacy Scale. Analyses included descriptives, Chi-square tests, t-tests, stepwise linear regressions, and moderation analyses. The mean age of the sample was 65.38 ± 7.72 years. Seventy-nine percent of the sample was White. Analyses indicated that the average pain was 4.15 ± 2.01 (0-10 scale; with 10 being worst pain), with the sample recording means of 6.53 ± 2.57 and 2.45 ± 2.15 on worst and least pain, respectively. Regression analyses showed extraversion (â = -0.21, p < .01) and openness to experience (â = 0.18, p < .05) to be significant predictors of higher current and average pain severity, respectively. Agreeableness (â = 0.18, p < .05) was found to be a significant predictor of higher self-efficacy for pain management. Conscientiousness and extraversion were significant moderators in the relationship between self-efficacy for pain management and worst pain severity. These findings indicate that different personality types and personal affect may influence reports of pain severity. More empirical research is needed to understand the impact of personality and its relationship with pain severity and self-efficacy for pain management in more diverse and marginalized cancer populations across the age continuum. Finally, the results may be used to design more individualized interventions on pain management, depending on personality type, an application that has never been done in older adults with cancer.

Volatiles are a fundamental component of the Magmatic-Hydrothermal model of platinum group element (PGE) ore deposition for PGE deposits in layered mafic intrusions such as Bushveld and Stillwater. Volatiles have the potential to complex with PGEs in silicate melts and hydrothermal fluids, increasing PGE solubility; in order to assess the models of PGE ore deposition reliable estimates on the solubilities in the various magmatic phases must be known. However, experimental studies on the solubility and partitioning behaviour of PGEs in mafic magmatic-hydrothermal systems under relevant conditions are sparse, and the data that do exist produce conflicting results and new or adapted experimental methods must be applied to investigate these systems. Experimental results are presented here, investigating the effect of volatiles (i.e. H2O, Cl and CO2) on Pt and Ir solubility in a haplobasaltic melt and fluid-melt partitioning of Pt between an aqueous fluid and a haplobasaltic melt under magmatic conditions using a sealed-capsule technique. Also included are the details of the development of a novel experimental technique to observe fluid-melt partitioning in mafic systems and application of the method to the fluid-melt partition of Pt. Solubility experiments were conducted to assess the effect of volatiles on Pt and Ir solubility in a haplobasaltic melt of dry diopside-anorthite eutectic composition at 1523K and 0.2GPa. Synthetic glass powder of an anhydrous, 1-atm eutectic, diopside-anorthite (An42-Di58) haplobasalt composition was sealed in a platinum or platinum-iridium alloy capsule and was allowed to equilibrate with the noble metal capsule and a source of volatiles (i.e. H2O, H2O-Cl or H2O-CO2) at experimental conditions. All experiments were run in an internally-heated pressure vessel equipped with a rapid quench device, with oxygen fugacity controlled by the water activity and intrinsic hydrogen fugacity of the autoclave (MnO-Mn3O4). The resultant crystal- and bubble-free run product glasses were analyzed using a combination of laser ablation ICP-MS and bulk solution isotope-dilution ICP-MS to determine equilibrium solubilities of Pt and Ir and investigate the formation and contribution of micronuggets to overall bulk determined concentrations. In water-bearing experiments, it was determined that water content did not have an intrinsic effect on Pt or Ir solubility for water contents between 0.9 wt. % and 4.4 wt. % (saturation). Water content controlled the oxygen fugacity of the experiment and the resulting variations in oxygen fugacity, and the corresponding solubilities of Pt and Ir, indicate that over geologically relevant conditions both Pt and Ir are dissolved primarily in the 2+ valence state. Pt data suggest minor influence of Pt4+ at higher oxygen fugacities; however, there is no evidence of higher valence states for Ir. The ability of the sealed capsule technique to produce micronugget-free run product glasses in water-only experiments, allowed the solubility of Pt to be determined in hydrous haplobasalt at lower oxygen fugacities (and concentrations) then was previously observed. Pt and Ir solubility can be represented as a function of oxygen fugacity (bars) by the following equations: [Pt](ppb)= 1389(fO-sub-2)+7531(fO-sub-2)^(1/2) [Ir](ppb)=17140(fO-sub-2)^(1/2) In Cl-bearing experiments, experimental products from short run duration (<96hrs) experiments contained numerous micronuggets, preventing accurate determination of platinum and iridium solubility. Longer run duration experiments showed decreasing amounts of micronuggets, allowing accurate determination of solubility; results indicate that under the conditions studied chlorine has no discernable effect on Pt solubility in the silicate melt from 0.6 to 2.75 wt. % Cl (saturation). Over the same conditions, a systematic increase in Ir solubility is found with increasing Cl content; however, the observed increase is within the analytical variation/error and is therefore not conclusive. If there is an effect of Cl on PGE solubility the effect is minor resulting in increased Ir solubilities of 60% at chlorine saturation. However, the abundance of micronuggets in short run duration experiments, which decreases in abundance with time and increases with Cl-content, offers compelling evidence that Cl-bearing fluids have the capacity to transport significant amounts of Pt and Ir under magmatic conditions. It is suggested that platinum and iridium dissolved within the Cl-bearing fluid are left behind as the fluid dissolves into the melt during the heating stages of the experiment, leaving small amounts of Pt and Ir along the former particle boundaries. With increasing run duration, the metal migrates back to the capsule walls decreasing the amount of micronuggets contained within the glass. Estimates based on this model, using mass-balance calculations on the excess amount of Pt and Ir in the run product glasses (i.e. above equilibrium solubility) in short duration experiments, indicate estimated Pt and Ir concentrations in the Cl-bearing fluid ranging from tens to a few hundred ppm, versus ppb levels in the melt. Respective apparent (equilibrium has not been established) partition coefficients (D,fluid-melt) of 1x10^3 to 4x10^3 and 300-1100 were determined for Pt and Ir in Cl-bearing fluids; suggesting that Cl-bearing fluids can be highly efficient at enriching and transporting PGE in mafic magmatic-hydrothermal ore-forming systems. Platinum solubility was also determined as a function of CO2 content in a hydrous haplobasalt at controlled oxygen fugacity. Using the same sealed capsule techniques and melt composition as for H2O and Cl, a hydrous haplobasaltic melt was allowed to equilibrate with the platinum capsule and a CO2-source (CaCO3 or silver oxalate) at 1523 K and 0.2 GPa. Experiments were conducted with a water content of approximately 1 wt. %, fixing the log oxygen fugacity (bars) between -5.3 and -6.1 (log NNO = -6.95 @ 1573 K and 0.2 GPa). Carbon dioxide contents in the run product glasses ranged from 800-2500 ppm; and over these conditions, CO2 was found to have a negligible effect on Pt solubility in the silicate melt. Analogous to the Cl-bearing experiments, bulk concentrations of Pt in CO2-bearing experiments increased with increasing CO2 content due to micronugget formation. Apparent Pt concentrations in the H2O-CO2 fluid phase, prior to fluid dissolution, were calculated to be 1.6 to 42 ppm, resulting in apparent partition coefficients(D,fluid-melt) of 1.5 x 10^2 to 4.2 x 10^3, increasing with increasing mol CO2:H2O up to approximately 0.15, after which increasing CO2 content does not further increase partitioning. As well, a novel technique was developed and applied to assess the partitioning of Pt between an aqueous fluid and a hydrous diopside-anorthite melt under magmatic conditions. Building upon the sealed-capsule technique utilized for solubility studies, a method was developed by adding a seed crystal to the capsule along with a silicate melt and fluid. By generating conditions favourable to crystal growth, and growing the crystal from the fluid, it is possible to entrap fluid inclusions in the growing crystal, allowing direct sampling of the fluid phase at the conditions of the experiment. Using a diopside seed crystal with the diopside-anorthite eutectic melt, it was possible to control diopside crystallization by controlling the temperature, thus allowing control of the crystallization and fluid inclusion entrapment conditions. Subsequent laser ablation ICP-MS analysis of the fluid inclusions allowed fluid–melt partition coefficients of Pt to be determined. Synthetic glass powder of an anhydrous, 1-atm eutectic, diopside-anorthite (An42¬Di58) haplobasalt composition (with ppm levels of Ba, Cs, Sr and Rb added as internal standards), water and a diopside seed crystal were sealed in a platinum capsule and were allowed to equilibrate at experimental conditions. Water was added in amounts to maintain a free fluid phase throughout the experiment, and the diopside crystal was separated from the melt. All experiments were run in an internally heated pressure vessel equipped with a rapid-quench device, with oxygen fugacity controlled by the water activity and intrinsic hydrogen fugacity of the autoclave (MnO-Mn3O4). Experiments were allowed to equilibrate (6-48 hrs) at experimental conditions (i.e. 1498K, 0.2 GPa, fluid+melt+diopside stable) before temperature was dropped (i.e. to 1483K) to induce crystallization. Crystals were allowed to grow for a period of 18-61 hours, prior to rapid isobaric quenching to 293K at the conclusion of the experiment. Experimental run products were a crystal- and bubble-free glass and the diopside seed crystal with a fluid-inclusion-bearing overgrowth. Analysis of fluid inclusions provides initial solubility estimates of Pt in a H2O fluid phase at 1488 K and 0.2 GPa at or near ppm levels and fluid melt partition coefficients ranging from 2 – 48. This indicates substantial metal enrichment in the fluid phase in the absence of major ligands such as carbonate or chlorine. The results of this study indicate that the volatiles studied (i.e. H2O, CO2, and Cl) do not have a significant effect on Pt and Ir solubility in a haplobasaltic melt at magmatic conditions. These results suggest that complexing of Pt and Ir by OH, Cl, and carbonate species in a haplobasaltic melt is insignificant and the presence of these volatiles will not result in significantly increased PGE contents over their dry counterparts, as has been suggested. Preliminary evidence of minor Cl-complexing of Ir is presented; however, resulting in only a slight increase (<100%) in Ir solubility at Cl-saturation. Significant partitioning of Pt and Ir into a fluid phase at magmatic conditions has been demonstrated; with estimates of fluid-haplobasaltic melt partition coefficients increasing from 1x10^1 for pure water to up to an apparent 4x10^3 with the addition of Cl or CO2 to the system. This result indicates complexing of Pt and Ir with OH< HxCOy≤ Cl. Using these estimates, Cl- or CO2-bearing magmatic fluids can be highly efficient at enriching and transporting platinum group elements (PGEs) in mafic magmatic-hydrothermal ore-forming systems.

企業創造價值的來源由傳統的有形資產如土地、廠房和設備等，轉變為無形的智慧資本，然而一般公認會計原則將創造智慧資本的投入視為費用加以處理，使得企業之帳面價值與市場價值的差距日益增加，公司的管理當局及投資人在評價時面臨重大困難，因而有效的智慧資本評價方式變得十分重要。本研究目的即在探討，採用收益基礎的評價模式下，何種資金成本估計方式所估計之資金成本較能有效反應投資人在考慮企業智慧資本之特性和風險後，所要求的必要報酬率，而使得以該資金成本作為折現率，估計企業智慧資本價值，所估計之結果較能反映企業之市場價值。本研究以Fama and French之三因子模式、益本比法以及市場模式估計企業之資金成本，實證結果發現如下： （1）不同資金成本估計方式所估計之結果存有一定程度的差異，而以不同資金成本估計方式所估計之資金成本作為折現率所計算之企業智慧資本價值亦有一定程度的歧異。 （2）三種估計企業資金成本的方式中，僅有Fama and French之三因子模式企業之Beta值呈正相關，而與公司規模呈負相關，為有效的資金成本估計方式。 （3）複迴歸分析結果發現，以三種方式所估計之資金成本作為折現率計算之智慧資本價值均對企業價值具有價值攸關性，而以三因子模式所估計之資金成本作為折現率計算之結果價值攸關性較高。 （4）若將企業依研發支出密度加以區分，在低研發支出密度公司中，以益本比法所估計之折現率計算之智慧資本價值攸關性最高；而在高研發支出密度以及零研發支出密度公司中均以三因子模式所估計之折現率計算之結果價值攸關性較高。 / Intellectual capital has become the origin of value of a company. But traditional GAAP views investment that is helpful to the value of untellectual capital such as R&D and advertisement as expenses, the gap between the book value and the market value of a business has become larger. This study confer that if we value a business through income-based method, what kind of estimated method of cost of capital should we use to make the estimated value of intellectual capital reflect the value of a business more efficiently. In this study we estimated cost of capital using three estimated method: factor model of Fama and French, earning to price ratio(E/P ratio), and market model, and we find: 1.If we use different kind of estimated methods, the estimated cost of capital can be different from each other. And if we use different kinds of cost of capital as discount rate, the estimated value of intellectual capital can be different from each other too. 2.Only the cost of capital that estimated through three factor model can be a effective method to estimate cost of capital of a company. 3.The value of intellectual capital can reflect the market value of the company when we use the cost of capital estimated through factor model, E/P ratio, and marlet model as the discount rate, and the result of Wald test suggest that using the cost of capital estimated by factor model as the discount rate to calculate the value of intellectual capital can reflect the market value more effeciently than others. 4.If we divide our sample into three group using the density of their R&D expenditure, we find that the cost of capital estimated by factor model can be the most efficient if a company has a higher R&D orzero expenditure.

This mixed methods study contains two studies that are linked together sequentially to explore the work/nonwork boundary management of home-based teleworkers through the overarching research question: Do personality traits and ICT use influence how teleworkers manage their work-nonwork boundary? Mobile ICT s such as smartphones are becoming increasingly more important for work and they can have a boundary blurring effect on the work-nonwork boundary as they may be used at anytime and anywhere. However, the issue of how personality traits influence ICT use and work-nonwork boundary management has been neglected, particularly in a teleworking context. As people manage their work-nonwork boundaries differently and some people work better at home than others, it is not known to what extent personality traits play a role in boundary management and ICT use. Study One explores the relationships between the big five personality traits of conscientiousness, extraversion and neuroticism, the facet level traits of dutifulness, gregariousness, and impulsiveness and work/nonwork boundary interruptions. It also explores the relationships between these traits and frequency of technology use for work purposes and the relationship of ICT s (smartphones, tablets and laptops) to work/nonwork boundary interruptions. Data was collected via an online survey, with recruitment from social media sites and Local Authorities totalling 391 usable responses. Conscientiousness was found to be negatively related to work-nonwork and nonwork-work interruptions, dutifulness negatively related to nonwork-work interruptions, neuroticism positively related to work-nonwork interruptions and impulsiveness positively related to nonwork-work interruptions. Personality traits were found to have small correlations to boundary interruptions which was a new finding, although it was expected that the correlations might have been larger than they were found to be. Extraversion was positively related to frequency of laptop use and extraversion and gregariousness were positively related to frequency of smartphone use, neuroticism was negatively related to frequency of smartphone use which were new findings in a work context. Frequency of ICT use was positively related to work-nonwork interruptions, with smartphones showing the highest correlation, followed by tablet and then laptop displaying a stepped effect. This finding of a stepped effect was new and suggests that the portability of smartphones makes them much easier to connect to work out of hours, than laptops and tablets. The second study included interviews from 20 participants who had completed the survey, four from each of five boundary management groups (Strong Segmentors, Strong Integrators, Moderate Managers, Work Boundary Protectors and Family Boundary Protectors). The groups were derived from scores from the survey data, in order to investigate in more depth, other factors that influenced boundary management interruptions that were not picked up in Study One and specifically the idiosyncrasies of ICT use between groups. The qualitative data was analysed via Template Analysis and the final themes in the template were Boundary Management, Crafting Work, Individual Differences, Telework and Interruptions. The theme of Boundary Management was dealt with in this study. Some key findings were that Study Two built upon Study One by finding that proactivity was a key theme and that this trait may be particularly active while individuals are teleworking due to the context. ICT s were used in a way that reflected the wide ranging boundary management preferences of the individuals using them.

Emotionell intelligens har studerats under flertalet år, i olika länder, och har definierats på olika sätt. Egenskapen emotionell intelligens består av fyra dimensioner; emotionality, self-control, well-being och sociability, och mäts genom mätinstrumentet TEIQue-SF. TEIQue-SF har uppnått god validitet som mätverktyg på olika språk, och valideras för första gången på svenska genom denna studie. Tidigare forskning har uppvisat flertalet samband mellan egenskapen emotionell intelligens (EI), personlighet och arbetsprestation. Dessa tillsammans har dock inte undersökts i Sverige. Syftet med att genomföra denna studie var att undersöka sambanden mellan Trait Emotional Intelligence Questionnaire Short Form (TEIQ-SF), Mini-International Personality Inventory Pool-6 (Mini-IPIP6), Short Dark Triad (SD3) och Individual Work Performance Questionnaire (IWPQ) ytterligare, samt att ta reda på vilka personlighetsdrag och dimensioner inom självupplevd individuell arbetsprestation som bäst förklarar variansen inom TEIQue-SFs dimensioner. Studien genomfördes som en tvärsnittsstudie med 228 svenska deltagare (M = 34 år, SD = 12.6, range 16-71 år, 66% kvinnor) med genomsnittlig arbetslivserfarenhet på 14 år (SD = 11.5). Förväntat resultat var att neuroticism skulle korrelera negativt med TEIQue-SF fyra dimensioner, vilket uppnåddes även i denna studie. Positiva samband med Task performance och Contextual performance fanns mellan samtliga dimensioner av EI. Regressionsanalyser visade även att neuroticism hade negativt samband vid förklaring av varians i samtliga dimensioner tillhörande TEIQue-SF. En preliminär slutsats är att TEIQue-SF visat på teoretiskt och empiriskt rimliga samband med relevanta variabler, och kan anses vara validerat bland yngre personer med relativt hög utbildningsnivå. / Emotional intelligence has been defined differently throughout studies for many years in several countries. The trait emotional intelligence consists of four dimensions; emotionality, self-control, well-being and sociability, and is measured by the TEIQue-SF measuring instrument. TEIQue-SF has achieved good validity as a measurement tool in different languages and is now validated in Swedish through this study. Previous research has shown liaisons between the emotional intelligence (EI), personality and work performance. However, these together have not been investigated in Sweden. The purpose of this study was to investigate correlations between Trait Emotional Intelligence Questionnaire Short Form (TEIQ-SF), Mini-International Personality nventory Pool-6 (Mini-IPIP6), Short Dark Triad (SD3) and Individual Work Performance Questionnaire (IWPQ), and to find out which personality traits and dimensions within self-perceived individual work performance best explain the variance within TEIQue-SF dimensions. The study was conducted as a cross-sectional study with 228 Swedish participants (M = 34 years, SD = 12.6, range 16-71 years, 66% women) with an average work experience of 14 years (SD = 11.5). Expected result was that neuroticism would correlate negatively with TEIQue-SF four dimensions, which was also achieved in this study. Positive correlation with Task Performance and Contextual Performance was found between all dimensions of EI. Regression analysis also showed that neuroticism had a negative relation to explanation of variance in all imensions of TEIQue-SF. A preliminary conclusion is that TEIQue-SF has shown theoretical and empirically reasonable relation to relevant variables and can be considered validated among younger people with relatively high educational levels.

Submitted by Maria Manuela de Orleans e Bragança (manubraganca@gmail.com) on 2015-07-22T20:40:40Z No. of bitstreams: 1 Dissertacao_MMOB.pdf: 7738596 bytes, checksum: e3007f71d369f339e417608a7d909a31 (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2015-07-23T19:16:14Z (GMT) No. of bitstreams: 1 Dissertacao_MMOB.pdf: 7738596 bytes, checksum: e3007f71d369f339e417608a7d909a31 (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2015-07-24T19:03:54Z (GMT) No. of bitstreams: 1 Dissertacao_MMOB.pdf: 7738596 bytes, checksum: e3007f71d369f339e417608a7d909a31 (MD5) / Made available in DSpace on 2015-07-24T19:04:18Z (GMT). No. of bitstreams: 1 Dissertacao_MMOB.pdf: 7738596 bytes, checksum: e3007f71d369f339e417608a7d909a31 (MD5) Previous issue date: 2015-05-25 / This work aims to verify if brazilian Hedge Funds generate significant positive alphas, that is, if managers have skill and contribute positively to the return of their funds during the period 2003 through 2013. To find the alphas, we estimate a sevenfactor model based, mainly, on the work of Edwards and Caglayan (2001), including an iliquidity factor to the model. We found that, on average, these funds earn negative alphas. However, despite the fact that the percentage of funds with positive alpha is low, their magnitude is significant. The results differ widely by Anbima classification and by sample. We also verify if there is performance persistence over time by using a non-parametric model based on contingency tables. We did not find evidence of persistence, not even when the funds were separated by classification. / O objetivo deste trabalho é verificar se os fundos de investimento Multimercado no Brasil geram alphas significativamente positivos, ou seja, se os gestores possuem habilidade e contribuem positivamente para o retorno de seus fundos. Para calcular o alpha dos fundos, foi utilizado um modelo com sete fatores, baseado, principalmente, em Edwards e Caglayan (2001), com a inclusão do fator de iliquidez de uma ação. O período analisado vai de 2003 a 2013. Encontramos que, em média, os fundos multimercado geram alpha negativo. Porém, apesar de o percentual dos que geram interceptos positivos ser baixo, a magnitude dos mesmos é expressiva. Os resultados diferem bastante por classificação Anbima e por base de dados utilizada. Verifica-se também se a performance desses fundos é persistente através de um modelo não-paramétrico baseado em tabelas de contingência. Não encontramos evidências de persistência, nem quando separamos os fundos por classificação.

Submitted by Alexandre Gomes (aludolf@gmail.com) on 2017-01-30T17:16:34Z No. of bitstreams: 1 FUNDOS MULTIMERCADOS BRASILEIROS CRIAM VALOR UMA AVALIACAO DOS ALFAS.pdf: 3747366 bytes, checksum: 91e4b622130ab4ac64d4ffc168ba2458 (MD5) / Approved for entry into archive by Renata de Souza Nascimento (renata.souza@fgv.br) on 2017-01-30T17:18:27Z (GMT) No. of bitstreams: 1 FUNDOS MULTIMERCADOS BRASILEIROS CRIAM VALOR UMA AVALIACAO DOS ALFAS.pdf: 3747366 bytes, checksum: 91e4b622130ab4ac64d4ffc168ba2458 (MD5) / Made available in DSpace on 2017-01-30T17:21:28Z (GMT). No. of bitstreams: 1 FUNDOS MULTIMERCADOS BRASILEIROS CRIAM VALOR UMA AVALIACAO DOS ALFAS.pdf: 3747366 bytes, checksum: 91e4b622130ab4ac64d4ffc168ba2458 (MD5) Previous issue date: 2016-12-16 / This work examines the alpha generation of the Brazilian multimarket fund industry, taking in account fund specific characteristics, fund strategies, investor segment during different economic conditions. The employed dataset represents 1,568 multistrategy funds from 328 different managers within a 10-year timeframe from Dec-2005 to Dec-2015. The proposed model utilizes a stepwise automatic feature selection method, similar to other authors such as Stafylas, Anderson e Uddin (2015), where features are selected from a regressor candidates list that contemplates: equity factors, interest rate factors, credit factors, currency factors and commodities factors. The results found shows that at a 5% level there is positive alpha generation, that is, Brazilian multistrategy funds on average have delivered extraordinary returns on the whole sample and at the more benign market environments. During less benign market environment multistrategy funds does not deliver alpha that is statistically distinguishable from zero and sub-strategy segmentation points to different risk exposures dynamics during different market conditions. / Esse trabalho analisa a geração de alfa da indústria brasileira de fundos multimercado, levando em consideração características específicas, estratégias de investimento e segmento de investidor durante diferentes condições econômicas. A amostra utilizada compreende 1.568 fundos de 328 gestores distintos, observados em granularidade mensal durante período de 10 anos, de dez-2005 a dez-2015. O método empírico utilizado faz uso de processo de seleção automática de regressores via stepwise, modelagem implementada por autores como Stafylas, Anderson e Uddin (2015), selecionados de uma lista prévia de candidatos a regressores amparados na literatura e contemplando fatores de ações, fatores de juros, fatores de risco de crédito, fatores de moedas e fatores de commodities. Os resultados obtidos mostram que a 5% existe geração de alfa positivo na categoria de fundos, isto é, os gestores de fundos multimercado têm capacidade de gerar, na média, retornos anormais na administração dos recursos dos investidores ao longo do tempo, tanto na amostra total quanto nos períodos econômicos mais benignos, contudo não apresentam retornos extraordinários estatisticamente diferentes de zero durante períodos econômicos menos benignos. Além disso, os fundos também apresentam diferenças sensíveis na composição dos retornos quando avaliados por sub-estratégias e em diferentes condições de mercado.

Titel: Personlighetsegenskaper och motivation Syfte: Att belysa hur en mellanchefs personlighetsegenskaper inverkar på hur de motiverar sina medarbetare.  Teori: The Big Five, arbetsmotivation och Herzberg tvåfaktormodell. Metod: En kvalitativ studie med ett konstruktionistiskt perspektiv samt ur en hermeneutisk synvinkel. Metoden utgjordes av fyra semistrukturerade intervjuer som spelades in och transkriberades. Intervjuerna utgick från en intervjuguide som var baserad på studiens teorier. Respondenterna valdes ut med ett målstyrt urval. Empiri: En sammanställning av de fyra semi-strukturerade intervjuerna som genomfördes. Slutsats: En mellanchefs personlighetsegenskaper visade sig ha en viss inverkan på hur de motiverar sina medarbetare. Hur stor denna inverkan är varierar mellan olika mellanchefer. I ett fall där en mellanchef hade medelnivåer av de flesta personlighetsdimensionerna och låga nivåer av extraversion samt neuroticism uppfattades hen vara lugn, reserverad och uppgiftsorienterad. Vilket inverkade på hens motivationsarbete genom att hen använde sig av inre motivationsfaktorer på ett sådant sätt där hen lämnade över ansvaret till medarbetarna själva. I ett annat fall hade en mellanchef utmärkande nivåer av tillgänglighet/vänlighet/behag och samvetsgrannhet, lite över medel av extraversion och låg nivå av neuroticism och öppenhet. Där det främst var hens låga nivå av extraversion som antydde på att hen är mer uppgiftsorienterad som visade sig inverka på hens sätt att motivera sina medarbetare, via den inre motivationsfaktor erkännande. En annan mellanchef med liknande personlighetsegenskaper, dock med en betydligt högre nivå av extraversion som innebär att hen är personinriktad istället, involverade sig betydligt mycket i sina medarbetare mer som enskilda individer och visade på ett betydligt större intresse för deras utveckling och välmående. Hen använde inre motivationsfaktorer som erkännande, prestation, personliga utvecklingsmöjligheter och hygienfaktorer som belöningar och lön. En annan mellanchef visade sig använda samma typer av motivationsfaktorer, dock med en helt annan nivå av engagemang och intresse i sina medarbetare, vilket troligen beror på hennes personlighetsegenskaper som är totala motsatsen jämfört med övriga studerade mellanchefer. / Title: Personality traits and motivation Purpose: To illustrate how a senior executive’s personality traits affect how they motivate their employees. Theory: The Big Five, work motivation and Herzberg's two factor model. Method: A qualitative study with a constructive perspective with one hermeneutical position. Four semi structured interviews were conducted, all of them were recorded and transcribed. Respondents were selected with a purposive sampling. Empirical: A compilation of the four semi-structured interviews conducted. Conclusion: A senior executive’s personality traits were found to have a certain impact on how they motivate their employees. The extent to which this effect is varied between the various senior executives. In one case where a senior executive had average levels of most personality dimensions and low levels of extraversion as well as emotionality, they were perceived to be calm, reserved and task-oriented. Which affected motivational work by using internal motivation factors in such a way that they left the responsibility to the employees themselves. In another case, a senior executive had distinctive levels of agreeableness and conscientiousness, a little over the means of extraversion and low levels of emotionality and openness to experience. Where primarily, there was a low level of extraversion that suggested that they are more task-oriented, which proved to impact in order to motivate their employees, through the internal motivation factor recognition. Another senior executive with similar personality characteristics, though with a significantly higher level of extraversion, which means that they are person-oriented instead, involved much more in their employees more than individual individuals and showed a much greater interest in their development and well-being. The senior executive used internal motivational factors such as recognition, achievement, personal development opportunities and hygiene factors such as rewards and salaries. Another senior executive was found to use the same types of motivational factors, but with a completely different level of commitment and interest in their employees, which is probably due to the personality traits, which is the opposite of the other senior executives