本研究探討歐洲已開發市場之主權信用違約交換與主權債券和無風險利率之債券信用價差之間的動態關係以及價格發現現象。此外亦分析可能影響歐洲已開發市場主權信用違約交換與債券信用價差變動之因子。 實證結果發現信用違約交換有較明顯之價格發現功能，且信用違約交換與債券信用價差間之基準差與信用風險呈現正向關係。而歐洲主權債券因其性質特殊，其使用德國政府公債作無風險利率反而較歐元交換利率為佳。此外我們發現利率變化與股市皆為影響歐洲主權信用價差之因子，而波動率之影響不明顯，原因也可能是歐洲主權債券過去低風險而成為資金避險標的之特殊性質。 / The thesis examines the dynamic relation between CDS and bond spread on developed European sovereign bonds. We also investigate which variables will affect the changes of CDS and bond spreads. We found that price discovery occurs on CDS more often, and the basis between CDS and bond spread has a positive relationship with credit risk. Due to the special characteristic of developed European sovereign bonds, the German sovereign bond yield is a better benchmark for risk-free rate than the Euro swap rate. Also we found that the change of rates and the return on stock market affect the European sovereign credit spread, but the effect of volatility on credit spread is limited. The reason should be the low-risk nature of these bonds in the past, which made them “safe” products for capitals to park.

摘 要 本研究探討證交所實施盤中撮合取消兩檔限制、盤中瞬間價格穩定措施、收盤改採五分鐘集合競價、揭露未成交五檔的買賣委託價量等措施後，是否對期貨市場的績效指標，包括流動性、波動度與市場效率等產生變化，亦即考量台灣交易制度與市場結構與國外的差異性後，市場間是否存有外溢現象(spillovers)；此外，本研究亦檢視期貨對現貨的領先關係是否隨著現貨市場的交易限制減少及市場透明度增加而出現變化，本研究劃分研究期間為五個區段，分別是91年4月1日 ~ 91年6月30日、91年7月1日 ~ 91年7月26日、91年7月29日 ~ 91年9月30日、91年7月1日 ~ 91年9月30日與92年1月1日 ~ 92年4月09日，以探討這些新措施本研究的主要發現與研究結論如下： 1. 市場成交量與波動度均出現先增後減的現象，在假設總體經濟情勢無重大變化的前提下，現貨市場制度改革會對期貨市場造成影響，適度的透明度有助於提高市場一般流動性交易者的交易動機，但當市場的透明度提高到某一種程度時，反而會降低資訊內部人在公開市場的交易意願。 2. 傳統流動比率(ALR)與變異數比率在研究期間不存有顯著差異，顯示現貨市場的制度改革，並未對期貨市場的整體市場效率帶來改變。 3. 在領先落後關係上，期貨市場受現貨市場的影響力逐期減小，主要有以下可能解釋，分別是衝擊市場訊息屬於全面性(market wide)，台灣現貨市場有平盤以下不得放空的規定限制現貨市場對壞消息的反應能力、期貨市場自從開市以來就已有揭露最佳未成交五檔買賣價量資訊的措施、以及現貨市場後期由於缺乏這些資訊內部人的參與而使其對新資訊的反應仍然不如期貨市場快速。 4. 現貨市場受期貨市場的影響呈現先增後減，表示投資人在制度實施初期對新制度尚不熟悉，導致現貨市場出現短暫無效率的現象，但在2003年1月的揭示未成交最佳五檔買賣價量制度實施後，現貨市場變的更加透明化，使其對期貨市場前期新資訊的依賴程度已大幅減少。 5. 期交所於2002 / 07 / 29更改盤中之撮合方式，將由原本每十秒集合競價撮合一次之方式改為逐筆撮合，對期貨的市場市場並未造成顯著特殊的影響。 關鍵字：外溢效果、領先落後、交易制度改革、市場績效指標、VECM-GARCH、衝擊反應函數、Granger因果關係檢定、Johansen共整合 / Abstract The Taiwan Stock Exchange adopted four main trading mechanisms. (elimination of the two up/down tick, intra-day volatility interruption, 5-min closing call auction, and disclosure of the best five bid/ask price and volume) This paper investigates the spillover effects on TAIFEX after considering the special market microstructure and trading systems in Taiwan. The major findings are as follows: 1. Trading volume and return volatility increase first and then decrease, under the assumption that ‘ no significant macroeconomic changes ’, spillover effects exists.

Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-10-24T11:35:35Z No. of bitstreams: 1 DIS_CARLOS_DAVID_GODWARD_COMPLETO.pdf: 1317478 bytes, checksum: b5114678f308871a52be8844a408fe66 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-10-24T11:35:49Z (GMT) No. of bitstreams: 1 DIS_CARLOS_DAVID_GODWARD_COMPLETO.pdf: 1317478 bytes, checksum: b5114678f308871a52be8844a408fe66 (MD5) / Made available in DSpace on 2017-10-24T11:36:01Z (GMT). No. of bitstreams: 1 DIS_CARLOS_DAVID_GODWARD_COMPLETO.pdf: 1317478 bytes, checksum: b5114678f308871a52be8844a408fe66 (MD5) Previous issue date: 2017-08-11 / Conditional Income Transfer Programs, Bolsa Fam?lia Program in Brazil, became an innovative instrument for reducing social inequality in many countries, specifically, in Latin America, where they were widely adopted. These programs have proven effective in several aspects such as reducing poverty and inequality, improving schooling rates, etc. An aspect that has remained unmentioned of these programs was their potential to encourage targeted workers of the program to migrate to the informal labour market in order to remain "invisible" to program managers and, thus, receive the benefits even when they do not qualify according to program standards. This study applies VECM (Vector Error Corrector Model) to show this issue may be occurring in the six Brazilian state capitals, included in the IBGE Monthly Employment Survey, from the creation of the program, in 2004, until March 2016. / Os Programas de Transfer?ncia de Renda Condicionada, Programa Bolsa Fam?lia no Brasil, foram uma forma inovadora de reduzir a desigualdade social em muitos pa?ses, principalmente da Am?rica Latina. Estes programas se mostraram eficientes em v?rios aspectos, como reduzir a pobreza, a desigualdade, melhorar ?ndices de escolaridade, etc. Mas, um aspecto pouco mencionado destes programas, ? o potencial de incentivar os trabalhadores - alvo do programa - a migrar para o mercado laboral informal, com o objetivo de ficarem ?invis?veis? aos gestores do programa e, assim, receberem os benef?cios, ainda que n?o se qualifiquem a eles, pelos n?veis de renda definidos pelo programa. Este trabalho utiliza o VECM (modelo Vector Corretor de Erros) para mostrar que este fato pode estar ocorrendo nas seis capitais do Brasil, que conformaram a Pesquisa Mensal de Emprego do IBGE, desde a cria??o do programa at? mar?o de 2016.

Foreign aid is a major flow of income into sub-Saharan African (SSA) countries, averaging roughly 12% of GDP over the last four decades. Yet, SSA countries are characterized by very low per capita output, low human capital attainment, and widespread poverty. This dissertation investigates the macroeconomic and welfare effects of foreign aid to SSA countries. The empirical part of the dissertation studies 22 SSA countries, and uses a cointegrated vector autoregressive analysis (CVAR). This methodology identifies long-run effects without imposing strong statistical priors. I introduce tradable and non-tradable sectors into the analysis to determine if the so-called “Dutch Disease” is the reason for the plight of SSA countries. “Dutch Disease” occurs when a positive shock to foreign aid perversely reduces GDP, by decreasing the relative price of tradable to nontradable goods, thus reducing the size of the tradable sector. While I find that aid reduces GDP in eight countries, this result is inconsistent with the “Dutch Disease” as it is not accompanied by large relative price changes. The analysis controls for a number of country-specific characteristics including extraordinary events. Overall, I find non-positive impacts of foreign aid on GDP and the tradable sector, with a few exceptions. I also consider the reverse causal channel and test whether country-specific macroeconomic variables drive foreign aid flows. I find that GDP, tradable output, and tradable and non-tradable goods prices do affect the amount of aid a country receives in 15 countries. These variables have no impact on foreign aid (aid is considered as weakly exogenous) in six countries. The theoretical part of the dissertation develops two dynamic stochastic general equilibrium — real business cycle — (DSGE-RBC) models to analyze the effects of foreign aid on human capital investment and the business cycle. The distinguishing feature of the models is to embed a human capital investment in a small open economy model of Mendoza (1991). The first model considers one-sector DSGE model, which is followed by two-sector (tradable and non-tradable) DSGE model. Both models distinguish between physical and human capital investment and allow for labor-leisure choice. In the analysis, labor supply and time spent studying or acquiring skills are optimally chosen. The models are calibrated to match the key features of the Kenyan economy. In both models, a positive aid shock initially has a negative impact on labor supply and output. However, the shock subsequently has a positive effect on physical and human capital investment, and time spent studying. This is due to a positive income effect from the shock. A rise in foreign aid increases consumption; consumption smoothing across periods raises physical and human capital investment, labor productivity, and output. I also find that reducing the volatility of aid has a significant positive effect on human capital investment and welfare. Policymakers should focus on reducing the volatility of foreign aid and not solely concentrate on the average level of aid. The analysis of the two-sector DSGE-RBC model incorporates the role for the “Dutch Disease” mechanism. Consistent with the “Dutch Disease”, I find that a shock to foreign aid appreciates the relative price of non-tradable goods that causes the factors of production to reallocate from the tradable sector to the non-tradable sector, leading to a decline in GDP and the tradable output. Finding the “Dutch Disease” result here is not necessarily at odds with the CVAR estimation results as the DSGE-RBC simulation is a short-run analysis and the CVAR estimation is a long-run analysis. / Graduate

本研究計畫探討以RN神經網路模型預測國內債券價格的效度。目前一般用於財務預測的神經網路論著主要為BPN模型，惟BPN模型有其限制，所以本研究計畫將（1）分析比較統計計量模型，BPN神經網路，RN神經網路系統對國內公債價格之預測績效。（2）分析不同時期的預測能力，找出景氣和預測變數的關係，同時將比較各個時期統計計量模型和神經網路模型是否同時有效， 抑或有些有效， 有些無效，以探討各工具是否具有互補性或替代性。並探討預測績效是否受到背後經濟環境的影響。 我們研究對象為國內公債，其每日交易資料取樣時間自民國八十一年開始。影響債券價格的因素可拆解成實質利率，預期通貨膨脹率和風險貼水三層面，本研究總體變數之選取，亦循此三項範疇以求周延。 本研究之研究成果對理論及實務應用將有下列三項預期貢獻：（1）比較不同其常的債券在不同景氣狀況下，各不同預測模型的預測效度差異，探討各時期各工具之預測能力，可提供投資實務界對預測工具之選擇，應用與搭配。（2）對債券報酬率預測研究，分析總體變數，利率風險等變數對債券報酬率的影響，可進一步暸解影響債券價格的相關因素及程度。（3）以往神經網路應用在財務預測領域上， 皆以BPN 神經網路為主，此處引進RN神經網路，比較兩者的表現，可提供學術理論界之驗證。 / This research project empirically investigates the accuracy of Reasoning Neural Networks (RN) in forecasting Taiwan's bond prices. We explore (1) the relative predictive abilities of Vector Error Correction Model (VECM), which serve as a representative econometric model, Back Propagation Neural Networks (BPN), which is adopted by most current studies in the application of neural networks in finance, and RN, and (2) th3 potential variations in the three models' predictive power in different phases of economic cycle. Specifically, we aim to study if the three models substitute or complementone another. In addition, we explore the extent to which the relativepredictive abilities of the three models varies with underlying macroecomonic factors. The explanatory variables adopted in this study include all potential drives to (real) risk-free rate, expected inflation rate, and riskspremiums. In this study, we examine the government bond terms to maturity,coupon rate, and prices of government bonds during 1992-1995. This project would contribute to both academic and application researchin the following three aspects : (1) Few, if any , prior study explores whether and how various neuralnetworks and/or eco- nomic models perform under different macro-economicvariables. Our empirical results may indicate an appropriate model ( ormodels ) to improve forecasting of bond prices. (2) This study shows how RN, BPN, and VECM models perform in forecastinggovernment bonds yields to maturity. (3) The BPN model prevails in financial forecasting. Nevertheless, BPNis subject to a few short comings and may thus be a sub-optimal model. This study analyzes if RN is more cost-effective in forecasting bond prices than BPN.

本篇主要為原物料指數與總體經濟物價間動態關聯性的研究。由於近年來糧食價格高漲，本研究選取CRB現貨指數（Commodity Research Bureau）、CCI期貨指數（Continuous Commodity Index），與CRB農產品指數為原物料指數以觀察原物料價格對總體面物價影響的程度；研究期間為2001年10月至2011年3月；總經物價指標選擇生產者物價指數（PPI）、消費者物價指數（CPI）、再加上國內生產毛額（GDP）；選取的國家為美國、臺灣與中國。本研究以Johansen共整合、向量自我迴歸模型、向量誤差修正模型、Granger因果關係檢定及衝擊反應分析等方法，探討三項原物料指數與總體經濟指標的互動關係。 研究結果顯示，原物料指數與總體指標之間的長期均衡關係不明顯。因果檢定顯示，CCI指數在因果檢定上領先CRB指數與CRB農產品指數；除了美國的GDP之外，CCI指數也領先各項總體經濟指標，但不論是CRB現貨指數或CRB農產品指數，對總經物價指標的領先-落後關係都不明顯，表示在CCI指數為較佳的預測指標。由衝擊反應分析的結果顯示，除了有共整合關係的變數間相互影響為長期性之外，受影響的物價指標僅在短期內會受到原物料價格變動的影響：總體物價指標面對原物料價格波動的反應約3期之後反應便逐漸消失，顯示原物料價格與總體物價指數之間的短期失衡期間並不長。 / This paper investigates the relationship between the commodity indexes and macroeconomic price indexes. Due to the sharp increase of food price in recent years, we add CRB index (Commodity Research Bureau), CCI index (Continuous Commodity Index), and CRB foodstuffs index in the research to see the magnitude of commodity price indexes to macroeconomic price indexes. This paper selects United State, Taiwan and China as samples and manages to find out the relationship of commodity indexes and macroeconomic price indexes by applying monthly data from October 2001 to March 2011. Macroeconomic price indexes are PPI (Producer Price Index), CPI( Consumer Price Index) and plus GDP Index. This paper tries to get the answer by applying Johansen Cointegration Test, Vector Autoregression Model(VAR), Vector Error Correction Model (VECM), Granger causality test and Impulse Response Analysis. The result does not show obvious long-term relationship between commodity price indexes and macroeconomic price indexes; and Granger causality test exhibits that CCI index takes the lead in the change of time. But we do not get consistent result between CRB index, CRB foodstuffs index and macroeconomic price indexes in Granger causality test which means commodity spot indexes do not necessarily lead in the change of time. This result implies that CCI index a better indicator in forecasting. According to Impulse Response Analysis, macroeconomic price indexes are influenced by commodity index only in a short period of time and this result tells us that the disequilibrium between commodity indexes and macroeconomic price indexes will not last long.

<p>This dissertation consists of four self-contained essays.</p><p>Essay I (with Cecilia Enström Öst) investigates whether housing allowance affects recipients’ tenure choice in Sweden. A two-stage conditional maxi-mum likelihood probit (2SCMLP) model is applied in a panel data setting to simultaneously control for individual heterogeneity, state dependence and endogeneity. The empirical study is based on administrative data of housing allowance recipients between the years 1994 and 2002. Our results indicate that the housing allowance positively affects recipients’ homeownership propensity in Sweden. </p><p>Essay II investigates whether the Swedish housing allowance system creates dependence on welfare in recipients. Using longitudinal data from Swedish micro database-LINDA, this paper found that there is no evidence of nega-tive duration dependence among the Swedish housing allowance spells. This finding is consistent across different model specifications and various con-trols of the heterogeneity issue. </p><p>Essay III analyzes the impacts of the 1997 reform of Swedish housing al-lowance system on affected recipients’ exit hazards using the DD (differ-ence-in-difference) estimation strategy. This paper found strong evidence that the 1997 reform positively shifted up the conditional exiting probability of the couple with children recipient group, and the estimated magnitude of impact is sizable.</p><p>Essay IV extends the VECM (Vector Error Correction Cointegration Model) and PT (permanent-transitory) variance decomposition framework proposed by Lettau & Ludvigson (2004) to a situation in which total wealth is disag-gregated into housing wealth and financial wealth. The empirical studies are based on the Swedish aggregate quarterly data spanning from 1980q1 to 2004q4. We found strong statistical evidence that the movements of total consumption expenditures, disposable income, housing wealth and financial wealth are tied together. It is also shown that the movements of housing wealth in Sweden contain a large proportion of transitory component. </p>

This dissertation consists of four self-contained essays. Essay I (with Cecilia Enström Öst) investigates whether housing allowance affects recipients’ tenure choice in Sweden. A two-stage conditional maxi-mum likelihood probit (2SCMLP) model is applied in a panel data setting to simultaneously control for individual heterogeneity, state dependence and endogeneity. The empirical study is based on administrative data of housing allowance recipients between the years 1994 and 2002. Our results indicate that the housing allowance positively affects recipients’ homeownership propensity in Sweden. Essay II investigates whether the Swedish housing allowance system creates dependence on welfare in recipients. Using longitudinal data from Swedish micro database-LINDA, this paper found that there is no evidence of nega-tive duration dependence among the Swedish housing allowance spells. This finding is consistent across different model specifications and various con-trols of the heterogeneity issue. Essay III analyzes the impacts of the 1997 reform of Swedish housing al-lowance system on affected recipients’ exit hazards using the DD (differ-ence-in-difference) estimation strategy. This paper found strong evidence that the 1997 reform positively shifted up the conditional exiting probability of the couple with children recipient group, and the estimated magnitude of impact is sizable. Essay IV extends the VECM (Vector Error Correction Cointegration Model) and PT (permanent-transitory) variance decomposition framework proposed by Lettau &amp; Ludvigson (2004) to a situation in which total wealth is disag-gregated into housing wealth and financial wealth. The empirical studies are based on the Swedish aggregate quarterly data spanning from 1980q1 to 2004q4. We found strong statistical evidence that the movements of total consumption expenditures, disposable income, housing wealth and financial wealth are tied together. It is also shown that the movements of housing wealth in Sweden contain a large proportion of transitory component.

Submitted by Denísio Liberato (denisioliberato@bb.com.br) on 2012-07-23T15:29:29Z No. of bitstreams: 1 TESE_versão_final_23072012.pdf: 1132720 bytes, checksum: 866d5e254e7f90dedcaaf1e8e4ac25ab (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2012-07-23T15:38:45Z (GMT) No. of bitstreams: 1 TESE_versão_final_23072012.pdf: 1132720 bytes, checksum: 866d5e254e7f90dedcaaf1e8e4ac25ab (MD5) / Made available in DSpace on 2012-07-23T15:45:40Z (GMT). No. of bitstreams: 1 TESE_versão_final_23072012.pdf: 1132720 bytes, checksum: 866d5e254e7f90dedcaaf1e8e4ac25ab (MD5) Previous issue date: 2012-06-22 / O objetivo central desta tese é colaborar com a literatura de finanças internacionais, abordando a discussão sobre os limites 'toleráveis' de endividamento aos quais os governos estão submetidos, bem como, sobre os fatores que afetam a forma como os países denominam suas dívidas no mercado internacional. A análise dos limites de endividamento é baseada num modelo onde crises de dívida auto-realizáveis podem ocorrer quando o nível de endividamento encontra-se em determinado intervalo. Uma vez nesta região, a dívida pode (ou não) ser rolada e, caso os credores não concedam novos empréstimos, a crise torna-se, de fato, uma profecia auto-realizável. Os resultados encontrados indicam que o limite de endividamento, além de bastante persistente, é muito dependente da razão dívida/PIB, bem como, dos históricos de inflação, crises bancárias e de defaults (ou reestruturações) de dívida soberana. Posteriormente, é feita uma aplicação do modelo estimado aos países da periferia do euro, na qual os resultados sugerem que países como Portugal e Grécia, mesmo após a adoção da moeda única, apresentam dificuldades em administrar os seus níveis de endividamento. Em conjunto, os resultados apresentados sugerem que quanto pior o histórico macroeconômico, menor será a capacidade do país 'tolerar' dívidas. Em relação à denominação da dívida, o estudo procura identificar em que medida a volatilidade da taxa de câmbio real efetiva, controlada por diversos fatores, impacta a forma como países se endividam no mercado internacional. Os resultados indicam que a baixa volatilidade cambial é condição fundamental para que a moeda doméstica seja utilizada em transações internacionais. Além disso, porte econômico, estabilidade de regras, respeito aos contratos e ampla liquidez dos mercados financeiros domésticos, são fatores que contribuem para a aceitação de uma moeda nos contratos de dívida internacional. Evidências adicionais do estudo sugerem que a ampla liquidez internacional, observada principalmente nos anos 2000, foi incapaz de ampliar de maneira significativa o número de moedas utilizadas no mercado internacional de dívidas. Ainda em relação a este tema, a tese analisa os primeiros passos da economia brasileira no sentido de alongar o perfil da dívida pública interna, por intermédio da emissão de títulos denominados em reais no mercado internacional. / The aim of this dissertation is to collaborate with the international finance literature, addressing the debate on the "acceptable" sovereign debt limits debt, as well as addressing on debt denomination in the international market. The analysis of debt limits is based on a model in which self-fulfilling debt crises can occur when the debt level reaches a certain range. Once this range is reached, the debt may (or may not) be rolled over and, if creditors do not grant new loans, the crisis becomes, in fact, a self-fulfilling prophecy. The results indicate that the indebtedness limit, besides being persistent, depends highly on the debt/GDP ratio, as well as on historical inflation, banking crises and default (or restructuring) of sovereign debt. Subsequently, an application of the estimated model is made to peripheral countries of the Euro Zone. The results suggest that countries like Portugal and Greece, even after the adoption of the single currency, have difficulties in managing their debt levels. The results also suggest that the worse the macroeconomic history, the lower the country's ability "to tolerate" debt. In relation to debt denomination, the study seeks to identify to what extent the volatility of real effective exchange rate, controlled by several factors, have an influence on how countries gain access to the international bond market. The results indicate that low exchange rate volatility is a fundamental condition for debt denominated in local currency in international markets. Moreover, the size of the economy, stability of regulations, enforcement of contracts and ample liquidity in domestic financial markets are factors that contribute to the acceptance of a currency in international debt contracts. Additional evidence of the study suggests that the broad international liquidity, mainly observed in the 2000s, was unable to expand significantly the number of currencies used in international debts. Still regarding this issue, the dissertation analyzes the first steps of the Brazilian economy in order to extend the profile of its public debt through the issuance of bonds denominated in Reais in the international market.

La inversión extranjera directa (IED) es uno de los elementos más importantes para el desarrollo de las economías emergentes por la transmisión de tecnología que genera. La literatura muestra que el tipo de cambio real y su volatilidad son unos de las principales determinantes de la entrada de IED. Asimismo, a pesar de que se ha investigado empíricamente la relación entre estas variables con la IED, la literatura no establece un signo claro, y los resultados varían según la economía que se analice. Por ello, considerando la importancia del tema, el presente estudio investiga la relación entre las variables mencionadas para el caso peruano para el periodo 1996 - 2019, utilizando el modelo de cointegración de Johansen y el modelo VEC para la relación de largo plazo. Los principales hallazgos del estudio revelan que, en el largo plazo, el PBI y la apertura comercial tienen una relación positiva con la IED, pero los términos de intercambio y el tipo de cambio real tienen una relación negativa. La volatilidad, por su parte, se estima con los modelos ARCH – GARCH, pero para el caso peruano el impacto resulta no ser significativo en el largo plazo sobre la IED. / Foreign direct investment (FDI) is one of the most important elements for the development of emerging economies due to the transmission of technology it generates. The literature shows that the real exchange rate and its volatility are one of the main determinants of the inflow of FDI. Also, although the relationship between these variables with FDI has been empirically investigated, the literature does not establish a clear sign, and the results vary according to the economy being analyzed. Therefore, considering the importance of the subject, this study investigates the relationship between the variables mentioned for the Peruvian case for the period of 1996 - 2019, using the Johansen cointegration model and the VEC model for the long-term relationship. The main findings of the study reveal that, in the long term, GDP and trade openness have a positive relationship with FDI, but the terms of trade and the real exchange rate have a negative relationship. Volatility, on the other hand, is estimated with the ARCH - GARCH models, but for the Peruvian case the impact turns out not to be significant in the long term on FDI. / Trabajo de investigación