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排序方式: 共有1371条查询结果,搜索用时 31 毫秒
31.
In this paper we study the pricing and hedging of options whose payoff is a polynomial function of the underlying price at
expiration; so-called ‘power options’. Working in the well-known Black and Scholes (1973) framework we derive closed-form
formulas for the prices of general power calls and puts. Parabola options are studied as a special case. Power options can
be hedged by statically combining ordinary options in such a way that their payoffs form a piecewise linear function which
approximates the power option's payoff. Traditional delta hedging may subsequently be used to reduce any residual risk. 相似文献
32.
The Effects of Bilateral Tax Treaties on U.S. FDI Activity 总被引:1,自引:0,他引:1
The effects of bilateral tax treaties on FDI activity have been unexplored, despite significant ongoing activities by countries to negotiate and ratify these treaties. This paper estimates the impact of bilateral tax treaties using both U.S. inbound and outbound FDI over the period 1980–1999. Robust to a wide variety of alternative specifications, we find little evidence that bilateral tax treaties increase FDI activity, contrary to OECD-stated goals for such treaties. 相似文献
33.
Increase (decrease) in loan loss provisions would decrease (increases) bank earnings, but increase (decreases) regulatory capital. Previous studies have separately documented earnings and capital management behavior via loan loss provisions by commercial banks. However, it is difficult to isolate a bank's demand for increasing earnings from its demand for regulatory capital because earnings is a source of capital. Based on the objective bank function, this study investigates the impact of SFAS No. 114 on the information content of loan loss provisions in relation to both earnings quality and capital adequacy in a linear information dynamic framework. Test results show that the association between market value with loan loss provisions became significantly stronger for commercial banks in the post- than in the pre-adoption period. As a result, SFAS No. 114 is also found to positively affect the association of market value with both bank earnings and regulatory capital through the clean surplus relation because of the higher value relevance of loan loss provisions. The findings thus provide empirical evidence that SFAS No. 114 has significantly complemented banking regulations in enhancing (reducing) the (dispersion from the) accounting measurement construct of loan loss provisions. 相似文献
34.
To our knowledge, this research is the first to focus on the critical moderating role that user training and support play on the relationship between the use of sales force automation tools and salesperson performance (i.e., effectiveness: percent-to-quota and efficiency: average number of calls per day). Hypotheses are tested using survey data from a sample of 108 salespeople in a business-to-business context and archival sales performance information. Moderated regression analysis results indicate that the use of sales force automation tools only enhances salesperson efficiency and effectiveness under conditions of adequate user support and training. In fact, under low levels of user training and support, the use of sales force automation tools was found to reduce salesperson efficiency and effectiveness. These findings have important implications for IT and sales managers since the results show that only under certain conditions will companies realize a return on their investment in SFA tools. Limitations and future directions for research are then discussed. 相似文献
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Ronald Leung Marco Stampini Desire Vencatachellum 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2014,82(1):99-116
The financial and economic crisis of 2008 and 2009 took a heavy toll on the South African economy. The economy contracted for the first time since 1998 and entered recession during the fourth quarter of 2008. The gross domestic product contraction was soon transmitted to the labour market. Between the second quarters of 2008 and 2009, employment fell by 3.8%. However, not all individuals were hit with the same intensity. Using panel data from a quarterly labour force survey unique in the African context, we find that human capital (i.e. education as years of schooling and workforce experience) provided a buffer against the shock. After controlling for observable characteristics, education and experience showed the potential to entirely offset the effect of the recession on the likelihood of employment. This has important policy implications, as it strengthens the case for strategic investments in human capital and helps identify the unskilled as having the greatest need for social safety net interventions during a recession. 相似文献
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Gail Whiteman D. René de Vos F. Stuart Chapin III Vesa Yli‐Pelkonen Jari Niemelä Bruce C. Forbes 《Business Strategy and the Environment》2011,20(4):251-265
Cities are key drivers of global climate change, with the majority of greenhouse gas (GHG) emissions being tied to urban life. Local actions to mitigate and adapt to climate change are essential for stabilization of the global climate and can also help to address other urban ecological problems such as pollution, decreasing biodiversity, etc. Companies are important urban actors in the development of low‐carbon cities because they provide a multitude of goods and services to city populations and directly influence urban carbon dioxide (CO2) emissions. This is a new area of research. While studies on corporate sustainability are numerous, there is little, if any, existing research that examines the role of companies in climate change adaptation and mitigation within specific urban areas. Urban ecologists also have not examined how corporate activity affects urban systems. Taking a multi‐disciplinary systems approach, we present a conceptual model of the role of companies in managing urban interactions with the climate system. We also present empirical findings illustrating how one company ‘partners’ with the city of Rotterdam to test electric vehicles as a pilot project for urban climate adaptation and mitigation. Copyright © 2010 John Wiley & Sons, Ltd and ERP Environment. 相似文献
40.
This paper analyses the contribution of the composition of the pool of employed and unemployed individuals to labour market dynamics in different phases of the business cycle. Using individual‐level data from the Current Population Survey (CPS), we decompose differences in employment status transition rates between upswings and downturns into explained and unexplained parts. We find that the duration of unemployment contributes to explaining unemployment outflows to employment and observe that its initially positive contribution turns negative in deep recessions. Composition effects play an important role for unemployment outflows to non‐participation but dampen the cyclicality of unemployment inflows from employment. 相似文献