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21.
Using option implied risk neutral return distributions before and after earnings announcements, we study the option market's reaction to extreme events over earnings announcements. While earnings announcements generally reduce short‐term uncertainty about the stock price, very good news does not reduce uncertainty and slightly bad news actually increases uncertainty. We also find that left tail probabilities decrease over earnings releases while right tail probabilities increase. We interpret these findings as evidence of maintained investor expectations that very good news is generally not released during earnings announcements, combined with skepticism in the form of lingering uncertainty at the release of such very good news. 相似文献
22.
Ray Marshall 《Journal of economic issues》2013,47(2):503-506
Gender inequality is caused by numerous factors, among which one may find traditional division of labor, family, religion and many other institutions. The state also influences a position of women in society and economy. Nowadays most western states seem to engage in the promotion of equal status of men and women. The European Union (EU) is known for its policy of gender mainstreaming that has been implemented in member states. The EU, however, promotes a neoliberal approach in the economy that seems to be in contradiction to the promotion of gender equality. In Poland, tendencies to liberate, privatize and deregulate are warmly welcomed as cures for economic underdevelopment. Gender equality, on the other hand, has been challenged as a relic of the former political system. In this paper, the author attempts to answer the question whether macroeconomic policy promoted by the EU influences the status of women in Poland. 相似文献
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Venture capitalists deliver investments to entrepreneurs in stages. This paper shows staged financing is efficient. Staging lets investors abandon ventures with low early returns, and thus sorts good projects from bad. The primary implication from staging is that it is efficient to invest more in later rounds. The model yields a number of predictions on how the ratio of early to late round financing varies with uncertainty, the outside options of both parties, the value of the venture, the costs of investment, and project difficulty. We test these predictions against data on venture capital financings and find significant empirical support for the theory. 相似文献
25.
Are some Indian banks too large? An examination of size efficiency in Indian banking 总被引:1,自引:0,他引:1
Subhash C. Ray 《Journal of Productivity Analysis》2007,27(1):41-56
In this paper we use data from the years 1997–2003 to evaluate the size efficiency, as distinct from scale efficiency, of
Indian banks. Following Maindiratta [Maindiratta A (1990) J Econ 46:39–56] we consider a bank to be “too large” if breaking
it up into a number of smaller units would result in a larger output bundle than what could be produced from the same input
by a single bank. When this is the case, the bank is not size efficient. Our analysis shows that many of the banks are, indeed,
too large in various years. We also find that often a bank is operating in the region of diminishing returns to scale but
is not a candidate for break up.
相似文献
Subhash C. RayEmail: |
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Khanzode VV Maiti J Ray PK 《International journal of injury control and safety promotion》2011,18(2):151-162
Reduction of risk of occupational injuries is one of the most challenging problems faced by industry. Assessing and comparing risks involved in different jobs is one of the important steps towards reducing injury risk. In this study, a comprehensive scheme is given for assessing and comparing injury risks with the development of injury count model, injury risk model and derived statistics. The hazards present in a work system and the nature of the job carried out by workers are perceived as important drivers of injury potential of a work system. A loglinear model is used to quantify injury counts and the event-tree approach with joint, marginal and conditional probabilities is used to quantify injury risk. A case study was carried out in an underground coal mine. Finally a number of indices are proposed for the case study mine to capture risk of injury in different jobs. The findings of this study will help in designing injury intervention strategies for the mine studied. The job-wise risk profiles will be used to prioritise the jobs for redesign. The absolute indices can be applied for benchmarking job-wise risks and the relative indices can be used for comparing job-wise risks across work systems. 相似文献
28.
As product offerings of multinational enterprises (MNEs) continue to primarily serve the relatively well-to-do consumers in emerging economies, innovations to meet the unique affordability and acceptability criteria of masses at the base of the pyramid (BoP) continues to remain a daunting challenge. The academic literature is sparse on comprehensive in-depth studies about the intricate processes involved in shaping and managing technology development for the masses. Focusing on product innovation by Tata Motors of India with the Nano—the world's cheapest car, our case study aims to understand how the innovator's choices regarding the use of technology, product design and organizational practices for new product development enabled it to meet the challenge of innovation for India's masses. Drawing on Christensen's work on disruptive innovations, our analysis shows how frugal use of resources through a new combination of existing component technologies created a new modular product to achieve the unique price–performance requirements demanded by the BoP. Our findings show that collaboration with suppliers for component design and their early integration in the design phase substantially lowered costs and helped eliminate unnecessary frills whilst incorporating features valued by mass markets. Our study has important managerial implications for MNEs and provides critical insights into the processes for a new blueprint for an untapped market segment in the automobile industry. 相似文献
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In a two‐country model where firms behave à la Cournot, we show that trade liberalization increases (decreases) the social desirability of those mergers that generate sufficiently large (small) reductions in marginal cost. There exists a range of intermediate levels of marginal cost savings such that marginal tariff reductions increase (decrease) the desirability of merger at sufficiently low (high) tariff levels. Moreover, in the neighborhood of free trade, we show that if trade liberalization increases the profitability of a merger, it necessarily also increases its desirability. 相似文献