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消費者對「付費頻道」、「計次付費頻道」接受意願之探討潘育銘, Pan , Yu- Ming Unknown Date (has links)
台灣自1993年公佈「有線電視法」後,有線電視產業發展快速,系統業者為因應市場的激烈競爭,紛採取垂直整合、合併或購併方式,致使廠商家數變化異常;同時由於採取整批收費方式,在價格上限管制之下,系統業者對市場具有壟斷力量,莫不提高收費管制上限的水準;而節目與廣告內容在不分級之下,可能影響青少年身心發展,依此多數學者與新聞局企圖引進「分級付費制度」及推出「付費頻道」與「計次付費頻道」以解決上述問題。有關「付費頻道」與「計次付費頻道」之供應,可增加市場服務之多樣性,然消費者的接受意願及真正的偏好。首先,本文應用巢式多項式羅吉特模型探討消費者對「分級付費制度」與現行整批收費方式的選擇意願;其次,再探討消費者選擇「分級付費制度」下,有關「付費頻道」與「計次付費頻道」的選擇意願模型;最後,應用台灣有線電視消費者的問卷資料對上述巢式羅吉特模型進行實證估計,並根據實證結果,嘗試對有線電視業者在提供「付費頻道」與「計次付費頻道」等節目時新服務管理策略的建議。
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投資型購屋者機率預測模型之建立 / The Probability predictive model of housing investors邱于修, Chiou,Yu Shiou Unknown Date (has links)
住宅為兼具消費及投資之雙重功能財貨,因此若從購屋動機劃分購屋族群,可以分為自住者及投資者,近年來受到國內房市呈現生氣蓬勃之景象及利率持續走低等總體經濟因素影響之下,出現越來越多以投資為主要目的之投資型購屋者,對於金融機構之購屋貸款業務來說,投資者之還款行為相較於自住者是比較不穩定的。故本文之研究目的即藉由探討自住者及投資者之購屋特徵異同,建立投資者之機率預測模型,預測某購屋者成為投資者之機率,提供一較為客觀之機率預測模型,供作金融機構放貸參考準則。接著進一步探討在不同機率界限(cutoff point)下之預測準確率,找出預測準確率最高之機率界限值,提高本模型之預測準確度;並探討金融機構在不同經營方針下之較適機率界限值。 / 本文使用台灣住宅需求動向季報之已購屋者問卷,建立二元羅吉特模型。研究結果顯示,區位在中心都市、高單價、小面積產品及大面積產品、預售屋及拍賣屋市場屬於投資型產品,而搜尋時間短、搜尋間數少、年齡較長、男性、無固定職業及家庭平均月收入較高者成為投資者之機率較高。接著,運用貝氏定理計算出預測準確率最高之機率界限值,結果當機率界限值為0.70時預測準確率最高,投資者達72.22%,自住者達80.07%。此外,並使用2007Q4的資料作樣本外驗證,投資者命中率為65.52%,自住者命中率為84.51%。最後,為提供金融機構運用,本文模擬兩種預測誤差在不同權重下對於金融機構所造成的損失,找出損失最少的機率界限值,結果皆是以0.70為最適機率界限值。 / Housing is dual function goods, consumption and investment, so if we separate the home buyers by their motives, they can be defined as two groups, owner-occupiers and investors. Recently, because the housing market is vigorous inland and the rates are fairly low, there are more and more home buyers buying houses for investment. To financial institutions, their payment behaviors are more instable, compare to owner-occupiers. So this article is aim to build a probability predictive model of housing investors by discussing the different home buying characters between owner-occupiers and investors. Therefore we can provide financing institutions a more objective method evaluating if they should lend money to the home buyers. Then we discuss the predictive accuracy with different cutoff points, finding the cutoff point with highest predictive accuracy, therefore we can elevate the model`s predictive accuracy. Besides, we also discuss the most optimal cutoff point for financial institutions under different administration principles. / This article builds binary logit model by the data of “Housing Demand Survey in Taiwan”. Our results suggests that if the houses in downtown、high unit price、big and small acreage、presale and court auction housing market belong to investing houses. And short search duration、few search items、older、male、non-constant job、higher income are getting higher probability to be housing investors. Then, we use Bayesian Theorem to figure out the cutoff point with highest predictive accuracy, and Our results suggests that 0.70 cutoff point with highest predictive accuracy , at that time, investor predictive accuracy is 72.22%, owner-occupier is 80.07%. Besides, we also do the out-sample test by the 2007Q4 data, the investor`s hit-rate is65.52%, the owner-occupier`s hit-rate is 84.51%. At the end, in order to provide financial institution to use, we give two predictive deviation different weights, to find the smallest loss cutoff point, the result all suggest that 0.70 is the most optimal cutoff point.
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Vem väljer att konsumeraekologiska produkter i Sverige? / What characterizes the typical consumer of ecological products in Sweden?Berglund, Malin, Sjöberg, Rasmus January 2016 (has links)
På livsmedelsmarknaden finns det olika produkter som konsumenten kan välja mellan. Valensom görs inom dagligvaruhandeln kan påverka individen och samhället på olika sätt, dåprodukter har olika näringsinnehåll och de har producerats under olika förutsättningar. För attkonsumenten ska veta hur olika produkter påverkar individen och samhället finns det olikamärkningar såsom Fairtrade och KRAV. Ekologiska produkter marknadsförs som hälsosammasamtidigt som de ska vara bättre för miljön än icke ekologiska produkter. Den ekologiskamarknaden har ökat de senaste 5 åren. Av den anledningen finner vi det intressant att analyseravem som väljer att konsumera ekologiska produkter och varför.Syftet med studien är att analysera vilka faktorer som påverkar konsumenternas val attkonsumera ekologiska produkter. För att kunna analysera de olika faktorerna användskvantitativa ansatser. Data samlas in genom en enkätundersökning och analyseras medekonometriska tekniker. Resultatet analyseras även med hjälp av ekonomiska teorier.Enkätundersökningen genomförs på den svenska marknaden, i de två kommunerna Norrköpingoch Ockelbo.Studiens resultat indikerar att utbildning, kön, upplevd kunskap om ekologiska märkningar,upplevd mediepåverkan, härkomst och kommun är signifikanta variabler för att förklaraekologisk konsumtion. Resultatet indikerar även att de två viktigaste argumenten för attkonsumera ekologiska produkter är ur hälso- och miljösynpunkt. / The consumer can choose between different products at the market of groceries. These choicescan affect the human being and society in different ways, because products do not have thesame nutritional value and they may not have been produced in the same way. Therefore, it isimportant for the consumer to have knowledge about brands like Fairtrade and KRAV. InSweden, the products that are marketed as healthy and environmentally friendly alternatives arecalled ecological products. In the last 5 years, the market of ecological products has increased,because the market shows that the demand of ecological alternatives has increased. For thisreason, we think it is interesting to analyze who the typical consumer of ecological products isand why.The purpose of this study is to analyze which factors that affects the consumer’s choice ofecological products. To analyze the different factors the study is using quantitative methods.The data will be collected from surveys and then analyzed by using econometrical techniques,and the results will be analyzed and examined using economic theories. The survey is beingperformed on the Swedish market, where the municipalities Norrköping and Ockelbo has beenchosen. Norrköping has a substantially larger population than Ockelbo, which we consider is abenefit for the study.The results of the study shows us that education, gender, perceived knowledge about ecologicalbrands, experienced influence from media, a Nordic heritage and municipality are significantvariables to explain ecological consumption. The results also indicate the two most importantarguments for consuming ecological products are those of health and environmentalperspectives.
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Road Infrastructure Readiness for Autonomous VehiclesTariq Usman Saeed (6992318) 15 August 2019 (has links)
Contemporary research
indicates that the era of autonomous vehicles (AVs) is not only inevitable but
may be reached sooner than expected; however, not enough research has been done
to address road infrastructure readiness for supporting AV operations. Highway
agencies at all levels of governments seek to identify the needed
infrastructure changes to facilitate the successful integration of AVs into the
existing roadway system. Given multiple sources of uncertainty particularly the
market penetration of AVs, agencies find it difficult to justify the
substantial investments needed to make these infrastructure changes using
traditional value engineering approaches. It is needed to account for these
uncertainties by doing a phased retrofitting of road infrastructure to keep up
with the AV market penetration. This way, the agency can expand, defer, or
scale back the investments at a future time. This dissertation develops a real
options analysis (ROA) framework to address these issues while capturing the
monetary value of investment timing flexibility. Using key stakeholder feedback,
an extensive literature review, and discussions with experts, the needed
AV-motivated changes in road infrastructure were identified across two stages
of AV operations; the transition phase and the fully-autonomous phase. For a
project-level case study of a 66-mile stretch of Indiana’s four-six lane
Interstate corridor, two potential scenarios of infrastructure retrofitting
were established and evaluated using the net present value (NPV) and ROA
approaches. The results show that the NPV approach can lead to decisions at the
start of the evaluation period but does not address the uncertainty associated
with AV market penetration. In contrast, ROA was found to address uncertainty
by incorporating investment timing flexibility and capturing its monetary
value. Using the dissertation’s framework, agencies can identify and analyze a
wide range of possible scenarios of AV-oriented infrastructure retrofitting to
enhance readiness, at both the project and network levels.
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Dynamique de la pauveté en milieu rural agricole ivoirien / Dynamics of poverty in ivoirian rural farming areaDiarra, Ibrahim 06 June 2018 (has links)
La notion de pauvreté a fait l’objet de nombreux débats à travers le monde. Les premières analyses ont mis l’accent sur le caractère unidimensionnel basé essentiellement sur une approche monétaire (revenu ou dépense de consommation). C’est à la faveur des travaux de certains auteurs, tels que Townsend et Sen, que le caractère multidimensionnel est mis en lumière, au regard de la difficulté de quantification de certaines variables qui traduisaient l’idée de manque. l ressort des nombreuses études empiriques que le secteur rural reste le secteur le plus touché par le phénomène de pauvreté.Dans le cas de la Côte d’Ivoire, la pauvreté reste également un phénomène rural et la plupart des études réalisées se sont focalisées sur l’approche monétaire. Cette étude aborde l’analyse de la pauvreté en se focalisant sur le milieu rural agricole et appréhende le phénomène de la pauvreté à partir de trois (03) approches : (i) monétaire ; (ii) privation relative et (iii) patrimoine.Les résultats montrent que la pauvreté reste importante dans ce secteur avec un taux plus élevé pour l’indicateur de privation relative. En outre, il existe une inégalité monétaire plus importante que les autres types de pauvreté quel que soit l’année (2002 et 2008).L’identification des facteurs explicatifs de l’appartenance ou non à la classe des pauvres, montre que les variables liées au genre, au type de religion et à la classe d’âge sont les plus communes aux différentes années et aux différentes approches.Sur la base des résultats obtenus, les recommandations suivantes sont formulées : (i) à l’endroit du gouvernement ivoirien, utiliser les approches monétaires et non-monétaires dans les prochaines analyses sur la pauvreté en Côte d’Ivoire ; mettre l’accent sur la construction de nouvelles infrastructures et l’achat de nouveaux équipements ; améliorer la communication relatives aux actions du gouvernement ; renforcer les capacités des producteurs en matière d’utilisation d’intrants améliorés et d’outils pertinents ; (ii) à l’endroit des producteurs agricoles, adopter les technologies et techniques agricoles et des intrants de qualité, accepter d’adhérer à des entreprises coopératives ; (iii) à l’endroit des coopératives, il faut rechercher des débouchés pour ses membres, négocier de meilleures rémunérations des productions agricoles, transformer les agriculteurs en véritables entrepreneurs agricoles. / The notion of poverty has been the subject of much debate around the world. Previous analyses have emphasized the one-dimensional character based essentially on a monetary approach (income or consumption expenditure). Thanks to the work of some authors such as Townsend and Sen, the multidimensional character is highlighted, considering the difficulty of quantifying certain variables that translated the idea of lack. In addition, many empirical studies show that the rural sector remains the most affected by poverty.In the case of Côte d'Ivoire, poverty is also a rural phenomenon and most studies have focused on the monetary approach.This study addresses the analysis of poverty by focusing on rural farming and apprehends the phenomenon of poverty from three (03) approaches: (i) monetary; (ii) relative deprivation and (iii) wealth.The results show that poverty remains important in this sector with a high rate for the indicator of the relative deprivation. In addition, there is greater monetary inequality than other types of poverty whatever the year (2002 and 2008).The identification of the explanatory factors of the membership or not in the class of the poor shows that the variables related to the gender, to the type of religion and the age group are the most common in the various years and various approaches.Based on the obtained results , the following recommendations are formulated: (i) towards the Ivorian government, use monetary and non-monetary approaches in next analyses on poverty in Côte d’Ivoire; emphasize the construction of new infrastructures and the purchase of new equipment; improve communication about government actions; build the capacity of producers to use improved inputs and relevant tools; (ii) to agricultural producers, adopt agricultural technologies and techniques and quality inputs, accept to join cooperative enterprises; (iii) for cooperatives, it is necessary to look for outlets for its members, to negotiate better remunerations for agricultural productions, to transform farmers into real agricultural entrepreneurs.
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Enhancing Britain's rivers : an interdisciplinary analysis of selected issues arising from implementation of the Water Framework DirectiveHampson, Danyel Ian January 2016 (has links)
The Water Framework Directive requires reduced environmental impacts from human activities and for the assessment of the non-market benefits of pollution remediation schemes. This policy shift has exacerbated the research problems surrounding the physical, social and economic consequences of the relationship between land use and water quality. This research seeks to quantify the major socio-economic and environmental benefits for people which may arise as riverine pollution is reduced. To achieve these aims this research integrates primary data analyses combining choice experiment techniques with geographical information system based analyses of secondary data concerning the spatial distributions of riverine pollution. Current knowledge on the microbial quality of river water, measured by faecal indicator organism (FIO) concentrations and assessed at catchment scale, is inadequate. This research develops generic regression models to predict base- and high-flow faecal coliform (FC) and enterococci (EN) concentrations, using land cover and population (human and livestock) variables. The resulting models are then used both to predict FIO concentrations in unmonitored watercourses and to evaluate the likely impacts of different land use scenarios, enabling insights into the optimal locations and cost-effective mix of implementation strategies. Valuation experiments frequently conflate respondents’ preferences for different aspects of water quality. This analysis uses stated preference techniques to disaggregate the values of recreation and ecological attributes of water quality, thereby allowing decision makers to better understand the consequences of adopting alternative investment strategies which favour either ecological, recreational or a mix of benefits. The results reveal heterogeneous preferences across society; specifically, latent class analysis identifies three distinct groups, holding significantly different preferences for water quality. From a methodological perspective this research greatly enhances the ongoing synthesis of geographic and economic social sciences and addresses important policy questions which are of interest to a variety of stakeholders, including government departments and the water industry.
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台灣省國民中學教師流動因素與型態之研究蕭霖, Hsiao Lin Unknown Date (has links)
本研究的目的在暸解教師流動的型態與調動的因素,從83學年度臺灣省國民中學調動教師中抽取384人,並同時抽取380位未調動教師作為參照。
本研究採用虛擬依變項的迴歸分析,探討導致教師調動的因素。結果發現教師調動的型態存在往都會地區流動的現象。調動與非調動教師的比較中,在性別、教學年資、婚姻狀況與配偶的勞動參與率、自用住宅的擁有、調動次數、學校規模、以及是否為居民的變項上有顯著的不同。
在調動機率的影響方面,性別、教學年資、婚姻狀況與配偶的勞動參與率、調動次數、學校規模、以及薪資與福利措施的滿意度上,有著顯著的預測力。研究的結論是教育人力資源分配仍不平均,從影響教師調動機率的因素中,可以提供導引教育人力資源分配更加均衡的線索。 / The main purpose of this study is to inquire into the style about the teachers' mobility and the factors affecting such mobility. Sampling from 1994 academic year in Taiwan, the researcher focuses on the 384 cases of all mobilized teachers and their counterpart-380 nonmobilized cases.
A dummy dependent regression analysis is conducted to explore the factors. As a result, the phenomenon for mobility tends to flow into the metropolis. Factors affecting the mobility exhibits significant differences compared to nonmobility; such as factors among sex, seniority, marriage, inhibition, frequcncy of mobility and the scale of the school.
In additions, the propensity to mobile, as this study finds, has to do with their sex, seniority, marriage and the labor participation of spouse, frequcency of mobility, degree of the content about their wages and welfare, and the scale of the school. The conclusions made here are: the human resources in education is still scanty. From the factors influenced mobility probability, it can provide some clues to make the human resources in education more equal.
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略蕭霖, HSIAO, LIN Unknown Date (has links)
The main purpose of this study is to inquire into the style
about the teachers' mobility and the factors affecting such
mobility. Sampling from 1994 academic year in Taiwan, the
researcher focuses on the 384 cases of all mobilized teachers
and their counterpart-380 nonmobilized cases. A dummy
dependent regression analysis is conducted to explore the
factors. As a result, the phenomenon for mobility tends to flow
into the metropolis. Factors affecting the mobility exhibits
significant differences compared to nonmobility; such as factors
among sex, seniority, marriage, inhibition, frequcncy of
mobility and the scale of the school. In additions, the
propensity to mobile, as this study finds, has to do with their
sex, seniority, marriage and the labor participation of spouse,
frequcency of mobility, degree of the content about their wages
and welfare, and the scale of the school. The conclusions made
here are: the human resources in education is still scanty. From
the factors influenced mobility probability, it can provide some
clues to make the human resources in education more equal.
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租稅天堂衍生租稅問題之研究 / the tax heaven and its problem吳宗吉, Wu, Tsung Chi Unknown Date (has links)
租稅天堂係一相對的概念,故其定義則因國而異。在企業國際化之後,租稅天堂的運用日趨頻繁,而方式則不一而足。其操作的原則不外乎透過移轉計價,即收入與費用的調整,將集團的利潤儘量集中在租稅天堂基地公司,以享受租稅遞延─甚至透過第二次隱藏的措施以圖謀中期或長期遞延利益。
我國自民國七十六年放寬外匯管制、七十八年放寬投資範圍及財務標準以來,對外投資的金額與件數激增。為瞭解我國廠商之成立控股公司與從事移轉計價之行為,乃就對外投資事業進行因素分析與Logit模型的檢定,分別尋求兩者行為的共同因素及具有影響力的動機。
雖然根據迴歸的結果顯示,企業乃是基於許多商業上的理由而使用租稅天堂;然而,其正當性的前提為所有的交易必須是純粹基於商業上的理由而非人為的策略。故從稅務機關的立場而言,它也有理由來關心交易是否按常規的價格或者利潤是否被不當地移轉。所以,合理的稅制乃必須兼顧廠商的商務上的需要與政府維持稅制公平、中立的職責。
惟觀乎我國目前對涉外交易之租稅規定,似較偏向於對外來投資之獎勵及規範,對於我國企業對外投資之相關稅負問題則規定甚少。緣此,本文乃就各國對於反租稅天堂措施中常用的一般性與特別性的立法規定,作一比較性的歸納,然後針對美國1993年的修正案作一說明。最後,對於假華僑案與重複課稅之減緩予以檢討,期能從中尋求出一個較為完善的稅制。
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預售屋、新成屋與中古屋之偏好選擇 / Housing choice among presale houses, newly constructed houses and existing houses.王俊鈞, Wang, Jiun Jiun Unknown Date (has links)
住宅選擇是每一個家戶都會面臨到的問題,過去文獻發現購屋者先選擇租屋或購屋,若決定購屋,則先決定於何區位購屋,然後再決定購買何種房屋類型之房屋,然而卻未曾提及購屋者於不同市場類型住宅間之選擇。預售屋、新成屋以及中古屋等不同市場類型之住宅,各自隱含不同的效用及風險,影響著購屋者之選擇,因此本研究試圖討論購屋者於不同市場類型住宅間之選擇與偏好。
本研究採用內政部營建署「住宅需求動向調查」資料,利用混合多項羅吉特模型探討不同限制條件下,預售屋、新成屋與中古屋之個體選擇行為。實證結果顯示,投資者較偏好於購買知覺風險較高之預售屋,期待以高知覺風險換取高的報酬;教育程度較高者,因對居住品質要求愈高,因此傾向於選擇設備新穎之預售屋與新成屋;家戶平均月所得較高之購屋者,負擔能力較高,因此選擇總價較高之預售屋機率較高,其次為新成屋。此外,搜尋頻率愈高者,選擇預售屋之機率愈高,因預售屋無實體存在,預售屋購屋者為降低其知覺風險,將花費更高之搜尋成本。在價格彈性分析部分,實證結果顯示預售屋之競爭力最高,但預售屋之受衝擊力亦最高,而中古屋之競爭力於三種市場類型中居次,但中古屋衝擊力最小,因此,當單價屬性發生變動時,較不影響中古屋購屋者之選擇,但卻大幅影響預售屋購屋者之選擇機率。 / Every household would face housing choice, the past housing choice study founded that households decided tenure choice first, if they decides to buy a house, they first decided on what location, and then decided what type of housing to buy, but it has not been mentioned the housing choice among different residential market types. Pre-sale houses, newly constructed houses and existing houses implied different effectiveness and risks, affecting the choice of homebuyers. This article tried to discuss homeowners’ choice among different residential market types.
This study use Construction and Planning Agency, "Housing Demand Survey of 2009" data, use mixed multinomial logit model, investigated under different constraints, housing choice behavior among pre-sale houses, newly constructed houses and existing houses. The empirical results showed that investors prefer higher perceived risk in buying pre-sale housing, looking for a high perceived risk and high rewards; higher education level, due to the higher quality requirements for living, so they preferred pre-sale houses and newly constructed houses. Homebuyers which have higher average monthly household income, have more affordable ability, so the probability of choosing pre-sale houses are much higher, followed by the newly constructed houses. In addition, the higher search frequency were more likely to choose pre-sale houses because pre-sale houses for sale no physical presence, pre-sale housing homebuyers in order to reduce their perceived risk, would spend more search costs. In the price elasticity analysis, empirical results showed that the pre-sale houses had the highest competitiveness, but the impact force was also the highest, while the existing houses market, the competitiveness of the third types was the second place, and the competitiveness of the existing houses was the smallest. Thus, when a change in unit price attribute, does not affect existing houses homebuyers, but significantly affected the choice probability of pre-sale houses homebuyers.
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