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Journal of Financial Economics

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Опубликовано на портале: 02-10-2003
Christopher Polk, Owen Lamont Journal of Financial Economics. 2002.  Vol. 63. No. 1. P. 51-77. 
Does corporate diversification reduce shareholder value? Since firms endogenously choose to diversify, exogenous variation in diversification is necessary in order to draw inferences about the causal effect. We examine changes in the within-firm dispersion of characteristics, or "diversity." Following the inefficient internal capital markets hypothesis, we examine investment diversity. We find that exogenous changes in diversity, due to changes in industry investment, are negatively related to changes in firm value. Thus diversification destroys value. This finding is not caused by measurement error. We also find that exogenous changes in industry cash flow diversity are negatively related to changes in firm value
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Опубликовано на портале: 03-10-2003
Owen Lamont, Christopher Polk Journal of Financial Economics. 2002.  Vol. 63. No. 1.
Does corporate diversification reduce shareholder value? Since firms endogenously choose to diversify, exogenous variation in diversification is necessary to draw inferences about the causal effect. We examine changes in the within-firm dispersion of industry investment, or "diversity". We find that exogenous changes in diversity, due to changes in industry investment, are negatively related to firm value. Thus diversification destroys value, consistent with the inefficient internal capital markets hypothesis. Measurement error does not cause this finding. We also find that exogenous changes in industry cash flow diversity are negatively related to firm value
ресурс содержит гиперссылку на сайт, на котором можно найти дополнительную информацию
Опубликовано на портале: 03-10-2003
Lubos Pastor, Robert F. Stambaugh Journal of Financial Economics. 2002.  Vol. 63. No. 3. P. 351-380. 
Authors construct optimal portfolios of equity funds by combining historical returns on funds and passive indexes with prior views about asset pricing and skill. By including both benchmark and nonbenchmark indexes, authors distinguish pricing-model inaccuracy from managerial skill. Modest confidence in a pricing model helps construct portfolios with high Sharpe ratios. Investing in active mutual funds can be optimal even for investors who believe managers cannot outperfofm passive indexes. Optimal portfolios exclude hot-hand funds even for investors who believe momentum is priced. Our large universe of funds offers no close substitutes for the Fama-French and momentum benchmarks.
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Опубликовано на портале: 06-11-2008
Andrei Shleifer, D. Wolfenzon Journal of Financial Economics. 2002.  Vol. 66. No. 1. P. 3-27 . 
We present a simple model of an entrepreneur going public in an environment with poor legal protection of outside shareholders. The model incorporates elements of Becker's (J. Political Econ. 106 (1968) 172) "crime and punishment" framework into a corporate finance environment of Jensen and Meckling (J. Financial Econ. 3 (1976) 305). We examine the entrepreneur's decision and the market equilibrium. The model is consistent with a number of empirical regularities concerning the relation between investor protection and corporate finance. It also sheds light on the patterns of capital flows between rich and poor countries and on the politics of reform of investor protection.
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