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91.
Ruth Kaila 《Quantitative Finance》2013,13(9):1515-1530
If the volatility is stochastic, stock price returns and European option prices depend on the time average of the variance, i.e. the integrated variance, not on the path of the volatility. Applying a Bayesian statistical approach, we compute a forward-looking estimate of this variance, an option-implied integrated variance. Simultaneously, we obtain estimates of the correlation coefficient between stock price and volatility shocks, and of the parameters of the volatility process. Due to the convexity of the Black–Scholes formula with respect to the volatility, pricing and hedging with Black–Scholes-type formulas and the implied volatility often lead to inaccuracies if the volatility is stochastic. Theoretically, this problem can be avoided by using Hull–White-type option pricing and hedging formulas and the integrated variance. We use the implied integrated variance and Hull–White-type formulas to hedge European options and certain volatility derivatives. 相似文献
92.
Employing a panel database, this article investigates empirically the behaviour, at an industry level, of cross-border mergers and acquisitions (M&As) in the People's Republic of China for the period 1991–2005. The study reports that many of the cross-border M&As over the past decades in China have been driven by broad fundamental factors, such as industry size and profitability. Moreover, technological intensity is significantly associated with the level of acquisition activity, indicating the tendency that intangible resources and intellectual capability favour more acquisition into China. It is found that deregulation, as a specific industry shock, affects acquisition activities significantly. The findings, it is concluded, have important managerial and policy implications. 相似文献
93.
In this article we examine which farmers would be early entrants into weather‐index insurance markets in Ethiopia, were such markets to develop on a large scale. We do this by examining the determinants of willingness to pay for weather insurance among 1,400 Ethiopian households that have been tracked for 15 years as part of the Ethiopian Rural household Survey. This provides both historical and current information with which to assess the determinants of demand. We find that educated, wealthier individuals are more likely to purchase insurance. Risk aversion is associated with low insurance take‐up suggesting that models of technology adoption can inform the purchase and spread of weather index insurance. We also assess how willingness to pay varied as two key characteristics of the contract were varied and found that basis risk reduces demand for insurance particularly when the price of the contract is high, and that provision of insurance through groups is preferred by female headed households and individuals with lower levels of education. 相似文献
94.
95.
Achim Himmelmann Dirk Schiereck Marc W. Simpson Moritz Zschoche 《Journal of Economics and Finance》2012,36(2):400-423
This study tests for underreaction and overreaction in European large cap markets by examining the abnormal returns of those
stocks in the EuroStoxx 50 Index following large price increases and decreases. We find that large price increases and declines
tend to be followed by average market returns. Thus, our results support the efficient market theory, rather than any of the
behaviour finance hypotheses. This insight is contrary to price patterns found in various national markets. 相似文献
96.
This article compares violations of minimum wage laws and other labour standards in New York City, Los Angeles and Chicago. Los Angeles has the highest violation rates, due to such factors as its industrial composition and disproportionately large number of small establishments, as well as its vast unauthorised immigrant population. In addition, Los Angeles’ higher rates reflect the stricter legal standards in California. We conclude that, although stronger workplace laws and regulations are crucial, in the absence of effective enforcement, they may fail to prevent workplace violations. 相似文献
97.
Axel Grossmann Emiliano Giudici Marc William Simpson 《Journal of Economics and Finance》2014,38(1):1-26
Using a frequency domain approach, we compare the spectra of equity market index returns for the 12 Euro-zone countries, the UK, the US, and Japan, over several time frames before and after the introduction of the Euro. In the immediate aftermath of the Euro-introduction, we find a reduced volatility over all frequencies, in which no strong cyclical components are present. However, in the long run, equity markets exhibit a volatility increase: the larger European equity markets develop dynamics that exhibit strikingly similar patterns, while the smaller European equity markets appear to follow dynamics closely resembling white noise. The similarity in dynamics is a likely candidate to explain the increase in correlation among the European markets. Furthermore, the European equity markets initially exhibited dynamics that resembled those of the US, while after the introduction of the Euro, the dynamics of the European Markets exhibits patterns similar to those found the UK. This suggests a change in the dynamic interdependency between the UK and the European markets and an increased convergence of UK market behavior with that behavior dominant in the Euro-zone. The findings may provide important implications for investors seeking to take advantage of international diversification. 相似文献
98.
This article proposes an alternative framework for understanding enterprise unionism by emphasizing political dynamics and the role of the state in labour relations. Our framework delineates the strategic behaviour patterns of each of the tripartite IR actors under collective bargaining. It maintains that the initial period of the collective bargaining era constituted a critical juncture for state labour policy that occurred in distinctive ways in different countries and that these differences played a central role in shaping the different union structures in the following decades. Our historical analysis shows that unlike its Western counterparts, the Japanese state was able to eradicate the horizontal union movement at the onset of the collective bargaining era because of its advantages as a late developer and Cold War politics, which resulted in enterprise unionism in Japan. 相似文献
99.
This study in 29 Chinese organizations contributes to our understanding about work-related values in China. Empirical research
in Chinese organizations indicates differences in work-related values between different age groups. The authors compared people
(older age group) with work experience from the pre-reform period – pre-1978 China, with those who started their work life
in a society that had already changed and become open to foreign investments (younger age group). The authors created a model
of institutionally sensitive work-related values. The results could help multinational companies achieve competitive advantage. 相似文献
100.
The current note clarifies that Condorcet Jury Theorem cannot be generalized to the extended setting where individual decisional
skills are not assumed to be exogenous parameters even when these skills are homogeneous. This is true when skills are determined
endogenously either by a central planner or, in a decentralized strategic setting, by the decision makers themselves. 相似文献