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1.
Duong Nguyen Suchismita Mishra Arun Prakash Dilip K. Ghosh 《The Journal of Financial Research》2007,30(3):379-398
We examine whether the use of the three‐moment capital asset pricing model can account for liquidity risk. We also make a comparative analysis of a four‐factor model based on Fama–French and Pástor–Stambaugh factors versus a model based solely on stock characteristics. Our findings suggest that neither of the models captures the liquidity premium nor do stock characteristics serve as proxies for liquidity. We also find that sensitivities of stock return to fluctuations in market liquidity do not subsume the effect of characteristic liquidity. Furthermore, our empirical findings are robust to differences in market microstructure or trading protocols between NYSE/AMEX and NASDAQ. 相似文献
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3.
On Stackelberg games in a homogeneous product market 总被引:2,自引:0,他引:2
Krishnendu Ghosh Dastidar 《European Economic Review》2004,48(3):549-562
In a homogeneous product duopoly with concave demand and strictly convex costs we bring together all the standard results of quantity Stackelberg games, provide some new results with price Stackelberg games and compare the equilibrium configuration of the quantity games with the price games. In the price Stackelberg game we show there is a unique SPNE where the leader chooses a lower price than the follower, but both get equal payoffs. We prove that generally quantity Stackelberg games are less competitive than price Stackelberg games. However, we also demonstrate the possibility of a reversal of this result. 相似文献
4.
Asim Ghosh 《Review of Quantitative Finance and Accounting》1996,6(3):223-231
In this article, the traditional price change hedge ratio estimation method is extended by applying the theory of cointegration in the case of cross-hedging of spot exchange risk of the Belgian franc (BF), the Italian lira (IL), and the Dutch guilder (NG) with U.S. Dollar Index futures contracts. Previous studies ignore the last period's equilibrium error and short-run deviations. The findings of this study indicate that the hedge ratio estimated by the error correction method is superior to that obtained from the traditional method, as evidenced by the likelihood ratio test and out-of-sample forecasts. Hedgers will be able to control the risk of their portfolios more effectively at a lower cost. 相似文献
5.
S. P. Ghosh 《Metrika》1965,9(1):212-221
In a stratified sample, when sampling is done with replacement in each stratum a better estimate of the population mean can
be achieved by considering the distinct units only. An explicit expression for the variance for the mean, of a stratified
sample based on the distinct units only, is obtained. Then the optimum allocation for the different stratum are obtained by
minimizing this variance subject to (i) total sample size being fixed, or (ii) the expected number of distinct units being
fixed. Neyman’s solutions are obtained as special cases. The solutions finally arrived at are algebraically complex, hence,
numerical methods are applied. In all examples, the variance of the estimates obtained by this method are smaller than the
variances obtained by Neyman’s allocation.
A part of this work was supported by the Office of the Ordinance Research; U.S.A. Grant (DA-AROL(D)-31-124-G83) when the author
was at University of California, Berkeley. 相似文献
6.
Jochem J. Bron Chinmoy Ghosh Milena T. Petrova 《The Journal of Real Estate Finance and Economics》2018,57(3):400-430
We test the performance and interaction between earnings and price momentum for European real estate companies by first making use of decile portfolios sorted on the previous 3- to 12-month returns, standardized unexpected earnings and a combination of both. Then, the relation is tested on a risk-adjusted basis employing a 3-factor asset pricing model and Fama and Macbeth (1973) cross-sectional regression analyses. Our analyses reveal several critical findings: (1) both price and earnings momentum are effective for European firms, the effect being stronger for the UK than EU firms; (2) unlike U.S. REITs, price momentum seems to dominate drift for European firms; (3) there is weak evidence for positive interaction between drift and price momentum, contrary to the U.S. evidence; (4) the performance of momentum strategies depends on the state of the economy, while controlling for systematic factors; (5) idiosyncratic risk of real estate property firms may influence the returns on drift and momentum factors. 相似文献
7.
This is a review article that unifies several important examples using constrained optimisation techniques. The basic tools are three simple mathematical optimisation results subject to certain constraints. Applications include calibration, benchmarking in small area estimation and imputation. A final illustration is constrained optimisation under a general divergence loss. 相似文献
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9.
Endogeneity is a crucial problem in survey-based empirical research on marketing strategy (MS) and inter-organizational relationships (IORs); if not addressed, it can cause researchers to arrive at flawed conclusions and to offer poor advice to practitioners. Although the field is increasingly cognizant of endogeneity-related issues, many authors fail to properly address it, particularly in survey-based research. Emphasizing the role of essential heterogeneity, this article develops an overarching framework to help improve the understanding of endogeneity problems and how to tackle them when researchers use cross-sectional survey-based data. The authors provide explanations of and advice for how MS and IOR researchers can address six “painful” and sometimes hidden decisions: 1) Do you have an endogeneity problem? 2) What technique/estimator is appropriate? 3) What instrumental variables (IVs) should be chosen? 4) How should IVs be evaluated empirically? 5) How should the results be interpreted and evaluated? and 6) What results should you report? The authors provide a practical flowchart to guide researchers in their efforts to address endogeneity-related concerns. 相似文献
10.
Richard D. Waters Paromita Ghosh Traci D. Griggs Eileen M. Searson 《Journal of Promotion Management》2014,20(5):537-552
Using design and communication principles, this study uses a content analysis design to evaluate all active blogs from the 2011 Fortune 500 list (n = 125). The results indicate that corporate America has only modestly incorporated the dialogic principles into their blogs. Current corporate blogs are well-designed as far as making them searchable and easy to navigate; however, the blogs are mostly being used to provide information in a one-way manner rather than creating an open dialogue with consumers. While blogging can enhance relationships with stakeholders, corporate communicators must strive to develop legitimate conversations with their blog readers. 相似文献