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101.
Charles H. Cho Martin L. Martens Hakkyun Kim Michelle Rodrigue 《Journal of Business Ethics》2011,104(4):571-587
Astroturf organizations are fake grassroots organizations usually sponsored by large corporations to support any arguments or claims in their favor, or to challenge and deny those against them. They constitute the corporate version of grassroots social movements. Serious ethical and societal concerns underline this astroturfing practice, especially if corporations are successful in influencing public opinion by undertaking a social movement approach. This study is motivated by this particular issue and examines the effectiveness of astroturf organizations in the global warming context, wherein large corporate polluters have an incentive to set up astroturf organizations to undermine the importance of human activities in climate change. We conduct an experiment to determine whether astroturf organizations have an impact on the level of user certainty about the causes of global warming. Results show that people who used astroturf websites became more uncertain about the causes of global warming and humans’ role in the phenomenon than people who used grassroots websites. Astroturf organizations are hence successful in promoting business interests over environmental protection. In addition to the multiple business ethics issues it raises, astroturfing poses a significant threat to the legitimacy of the grassroots movement. 相似文献
102.
In-Koo Cho 《Economic Theory》1995,7(1):1-17
Summary. We examine an infinitely repeated principal agent game without discounting (Radner [1985] ), in which the agent may engage in multiple projects. We focus on “linear” strategies that summarize each history into a linear function of public outcomes, and select an action according to a single threshold rule. We claim that linear strategies significantly simplify the computation needed to make strategic decisions following each history. Despite the simplicity of linear strategies, we can virtually recover the folk theorem. For any individually rational payoff vector in the interior of the set of feasible expected payoff vectors, there exists a pair of linear strategies that form a Nash equilibrium supporting the target payoff. The equilibrium strategies and the equilibrium payoff vectors form a globally stable solution (Smale [1980] ). 相似文献
103.
Much research has focused on the development of equilibrium models of local jurisdictions to analyze the formation of social structures and community characteristics. These models, however, have been subjected to little empirical testing. In a recent paper, Epple and Sieg (1999) developed a new method for estimating equilibrium models of local jurisdictions, but they did not include environmental amenities in their empirical application. In this paper, we extend and apply this new method to estimate households’ preferences for alternative environmental amenities in the Portland Oregon metropolitan area. We show that estimated structural parameters would be biased if environmental amenities are ignored. By including amenities into the structural models of local jurisdictions, households’ preferences for alternative environmental amenities and public goods are estimated. Parameter values underlying households’ residential choices are uncovered. Many of the empirical regularities observed in the data are replicated (JEL R1, R2, Q2). 相似文献
104.
Cho JOONMO Linn SCOTT C. Nakibullah ASHRAF 《Review of Quantitative Finance and Accounting》1997,8(2):163-179
This paper analyzes the problems associated with the renegotiation of debt contracts involving a bank (the lender) and a firm (the borrower) when the latter is operated by a risk averse manager. Firms undertake risky projects with loan capital borrowed from the bank. When a firm cannot pay off a loan it is technically bankrupt. Both the borrower and the lender may however experience a Pareto-improvement in their positions by renegotiating the loan. By renegotiating the terms of the debt the financially distressed firm can avoid the stigmatization of bankruptcy and the bank can avoid the costs of seizing the borrower's assets. However, our main finding is that, from the bank's point of view, renegotiating as a policy of recovering loan payments may be inefficient in practice because of false bankruptcy claims and moral hazard problems associated with exposure of the borrowing firm to the risk of default. We present a solution to the false bankruptcy claim problem that involves a mixe d strategy between asset seizure by the bank and debt renegotiation. 相似文献
105.
We analyse the dynamic labour participation behaviour of Korean women. State dependence under unobserved heterogeneity is considered, where the heterogeneity may be unrelated, pseudo‐related, or arbitrarily related to regressors. Three minor methodological contributions are made: interaction terms with lagged response are allowed in dynamic conditional logit; a three‐stage algorithm for dynamic probit is proposed; and treating the initial response as fixed is shown to be ill‐advised. The state dependence is about 0.6 × SD(error), higher for the married or junior college‐educated, and lower for women in their twenties and thirties. While education increases participation, college education has negative effects for women in their forties or above. Marriage has a high negative short‐term effect but a positive long‐term effect. 相似文献
106.
Recent studies have indicated the potential gains to U.S. investors from international portfolio diversification. Due to the rapid growth of the four Asian newly industrialised countries (NICs), namely, Hong Kong, Singapore, South Korea and Taiwan, it is believed that U.S. investors will become increasingly interested in these equity markets. The purpose of the present study is to investigate from the U.S. perspective, the prospects of diversifying across the countries. The results indicate that a diversified portfolio among these markets yields a higher return-to-risk ratio than investing in the U.S. market alone.The authors are with the School of Management, National University of Singapore. 相似文献
107.
We study Disability Insurance (DI) application behavior in the US using matched SIPP and administrative data over 1989–1995. Certain state-contingent earnings projections and eligibility probabilities are central to the analysis. We find evidence for a small work disincentive effect of DI that seems to be restricted to a subset of the DI beneficiaries, including low earning groups such as blue collar workers and those subject to economic dislocation. Processing time, Medicare value, unemployment, private health insurance, and health shocks are some of the major factors that affect application propensity. The behavioral response of female workers to various parameters of the DI program is found to be quite different from that of males. 相似文献
108.
Wai-Man Tse ; Eric C. Chang† ; Leong Kwan Li‡ ; Henry M. K. Mok§ 《The Journal of risk and insurance》2008,75(1):167-192
We derive a risk‐neutral pricing model for discrete dynamic guaranteed funds with geometric Gaussian underlying security price process. We propose a dynamic hedging strategy by adding a gamma factor to the conventional delta. Simulation results demonstrate that, when hedging discretely, the risk‐neutral gamma‐adjusted‐delta strategy outperforms the dynamic delta hedging strategy by reducing the expected hedging error, lowering the hedging error variability, and improving the self‐financing possibility. The discrete dynamic delta‐only hedging not only causes potential overcharge to clients but also could be costly to the issuers. We show that a naive application of continuous‐time hedging formula to a discrete‐time hedging setting tends to worsen these possibilities. 相似文献
109.
Leong Kwan Li Ph.D. 《North American actuarial journal : NAAJ》2013,17(4):23-31
Abstract The authors investigate the pricing of discretely monitored dynamic fund protections when the fund price follows a lognormal process or a constant elasticity of variance (CEV) process. A backward recursive pricing formula is derived. By employing a numerical technique that combines function approximation and numerical quadrature, the authors demonstrate how to complete each recursion level efficiently. Numerical experiments show that the results compare favorably with those obtained by other pricing methods. 相似文献
110.
Between 1980 and the early 1990s the variability of labor earnings growth rates across the prime-age working population fell significantly. This decline and timing are consistent with other macro and micro observations about growth variability that are collectively referred to as the “Great Moderation.” The variability of earnings growth is negatively correlated with age at any point in time, and the U.S. working age population got older during this period because the Baby Boom was aging. However, the decrease in variability was roughly uniform across all age groups, so population aging is not the source of the overall decline. The variance of log changes also declined at multi-year frequencies in such a way as to suggest that both permanent and transitory components of earnings shocks became more moderate. A simple identification strategy for separating age and cohort effects shows a very intuitive pattern of permanent and transitory shocks over the life cycle, and confirms that a shift over time in the stochastic process occurred even after controlling for age effects. 相似文献