Research Outputs
Permanent URI for this communityhttps://hdl.handle.net/20.500.14288/2
Browse
14 results
Search Results
Publication Metadata only A theory of collateral for the lender of last resort(Oxford Univ Press, 2021) Choi, Dong Beom; Santos, Joao A. C.; N/A; Yorulmazer, Tanju; Faculty Member; Graduate School of Social Sciences and Humanities; 328768We consider a macroprudential approach to analyze the optimal lending policy for the central bank, focusing on spillover effects that policy exerts on money markets. Lending against high-quality collateral protects central banks against losses, but can adversely affect liquidity creation in markets since high-quality collateral gets locked up with the central bank rather than circulating in markets. Lending against low-quality collateral creates counterparty risk but can improve liquidity in markets. We illustrate the optimal policy incorporating these trade-offs. Contrary to what is generally accepted, lending against high-quality collateral can have negative effects, whereas it may be optimal to lend against low-quality collateral.Publication Metadata only Aggregate investor preferences and beliefs: a comment(Elsevier Science Bv, 2013) Kopa, Milos; N/A; Post, Gerrit Tjeerd; Other; Graduate School of Business; N/AA recent study in this journal presents encouraging results of a daunting simulation analysis of the statistical properties of a centered bootstrap approach to stochastic dominance efficiency analysis. However, by relying on the first-order optimality condition in a situation where multiple optima may occur, the empirical analysis draws the questionable conclusion that some of the toughest data sets in empirical asset pricing can be rationalized by the representative investor maximizing an S-shaped utility function, consistent with the so-called Prospect Stochastic Dominance criterion. Further research could be directed to developing global optimization algorithms and consistent re-sampling methods for statistical inference for general risky choice problems.Publication Metadata only Bank risk management in emerging markets after the enhanced Basel rules(World Scientific Publishing Co., 2011) Candan, Hasan; N/A; Özün, Alper; Faculty Member; Graduate School of BusinessN/APublication Metadata only Downside risk aversion, fixed-income exposure, and the value premium puzzle(Elsevier Science Bv, 2012) Baltussen, Guido; Van Vliet, Pim; N/A; Post, Gerrit Tjeerd; Other; Graduate School of Business; N/AThe value premium is relatively small for investors with a material fixed-income exposure, such as insurance companies and pension funds, especially when they are downside-risk-averse. Value stocks are less attractive to these investors because they offer a relatively poor hedge against poor bond returns. This result arises for plausible, medium-term evaluation horizons of around one year. Our findings cast doubt on the practical relevance of the value premium for these investors and reiterate the importance of the choice of the relevant test portfolio, risk measure and investment horizon in empirical tests of market portfolio efficiency.Publication Metadata only Empirical tests for stochastic dominance optimality(Oxford Univ Press, 2017) N/A; N/A; Post, Gerrit Tjeerd; Other; Graduate School of Business; N/AIf a given risky prospect is compared with multiple choice alternatives, then a joint test for optimality is more appropriate than a series of pairwise Stochastic Dominance tests. We develop and implement a bootstrap empirical likelihood ratio test for this hypothesis. The test statistic and implied probabilities can be computed by searching over discrete distributions that obey a system of linear inequalities using quasi-Monte Carlo simulation and convex optimization methods. An extension of the Kroll-Levy simulation experiment shows favorable small-sample properties for data sets of realistic dimensions. In an application to Fama-French stock portfolios, pairwise tests classify a portfolio of small growth stocks as admissible, whereas our test classifies the portfolio as significantly non-optimal for every risk averter.Publication Metadata only Foreign ownership and bank efficiency: evidence from Turkey(IGI Global, 2014) Department of Business Administration; N/A; Akdeniz, Özlem Olgu; Yılmaz, Emrah; Teaching Faculty; Master Student; Department of Business Administration; College of Administrative Sciences and Economics; Graduate School of Social Sciences and Humanities; 113156; N/AThis chapter examines the association between Foreign Direct Investment (FDI) and efficiency of commercial banks in Turkey during the 2003-2010 period. First, the authors examine the technical efficiency of banks by applying the Data Envelopment Analysis (DEA) and financial ratio analysis following the relevant literature. Then, they attempt to shed light on the relationship between FDI and bank efficiency applying a second stage regression analysis. The results indicate that banks that have received FDI are more efficient than others whilst there is no significant correlation among the FDI dummy and bank efficiency in Turkey. Moreover, the analysis of balance sheet ratios suggests that foreign investors target more profitable and larger banks in the sector to form partnerships. Thus, consistent with Berger et al. (2003), the authors propose that efficiency is a pre-condition rather than a result of FDI in the Turkish banking sector.Publication Metadata only Global dividend payout patterns: the US and the rest of the world and the effect of financial crisis(Jai Press Inc, 2015) Fatemi, Ali; Fooladi, Iraj; N/A; Bildik, Recep; Teaching Faculty; Graduate School of Business; 185382This paper compares the dividend payout behavior of US firms with those of firms in 32 other countries for the period of 1985-2011. It also investigates the possible impact of the 2007 financial crisis on the payout policies in these 33 countries. Results show that the proportion of firms that pay dividends (payers) is lower in the US than that it is in the rest of the world. In both the US and the rest of the world the proportion of payers decreases (and significantly so) in each of the years leading to the year 2000 and then reverses direction and increases during the post-2000 years. (C) 2015 Elsevier Inc. All rights reserved.Publication Metadata only Irrational diversification: an examination of individual portfolio choice(Cambridge University Press (CUP), 2011) Baltussen, Guido; N/A; Post, Gerrit Tjeerd; Other; Graduate School of Business; N/AWe study individual portfolio choice in a laboratory experiment and find strong evidence for heuristic behavior. The subjects tend to focus on the marginal distribution of an asset, while largely ignoring its diversification benefits. They follow a conditional 1/n diversification heuristic as they exclude the assets with an "unattractive" marginal distribution and divide the available funds equally between the remaining "attractive" assets. This strategy is applied even if it leads to allocations that are dominated in terms of first-order stochastic dominance and is clearly irrational. In line with these findings, we find that framing and problem presentation have substantial influence on portfolio decisions.Publication Metadata only On the performance of emerging market equity mutual funds(Elsevier, 2011) Huij, Joop; N/A; Post, Gerrit Tjeerd; Other; Graduate School of Business; N/AWe document persistence in the performance of emerging market equity funds and find several notable differences compared to US equity funds. First, the contribution of winner funds to the return spread between winner and losers is substantially larger for emerging market funds. Second, only a small portion of the return spread between winners and losers can be attributed to momentum effects in emerging markets. Third, winner funds in emerging markets generate returns that are sufficiently large enough to cover their expenses. Overall, our findings suggest that emerging market funds generally display better performance than US funds.Publication Metadata only State-dependent asset allocation using neural networks(Taylor & Francis, 2022) Bradrania, Reza; N/A; Pirayesh Negab, Davood; PhD Student; Graduate School of Sciences and Engineering; N/AChanges in market conditions present challenges for investors as they cause performance to deviate from the ranges predicted by long-term averages of means and covariances. The aim of conditional asset allocation strategies is to overcome this issue by adjusting portfolio allocations to hedge changes in the investment opportunity set. This paper proposes a new approach to conditional asset allocation that is based on machine learning; it analyzes historical market states and asset returns and identifies the optimal portfolio choice in a new period when new observations become available. In this approach, we directly relate state variables to portfolio weights, rather than firstly modeling the return distribution and subsequently estimating the portfolio choice. The method captures nonlinearity among the state (predicting) variables and portfolio weights without assuming any particular distribution of returns and other data, without fitting a model with a fixed number of predicting variables to data and without estimating any parameters. The empirical results for a portfolio of stock and bond indices show the proposed approach generates a more efficient outcome compared to traditional methods and is robust in using different objective functions across different sample periods.