ABSTRACT This paper shows that revealing public information to reduce information asymmetry can reduce a firm's cost of capital by attracting increased demand from large investors due to increased liquidity of its securities. Large firms will disclose more information since they benefit most. Disclosure also reduces the risk bearing capacity available through market makers. If initial information asymmetry is large, reducing it will increase the current price of the security. However, the maximum current price occurs with some asymmetry of information: further reduction of information asymmetry accentuates the undesirable effects of exit from market making.

This paper shows that revealing public information to reduce information asymmetry can reduce a firm's cost of capital by attracting increased demand from large investors due to increased liquidity of its securities. Large firms will disclose more information since they benefit most. Disclosure also reduces the risk bearing capacity available through market makers. If initial information asymmetry is large, reducing it will increase the current price of the security. However, the maximum current price occurs with some asymmetry of information: further reduction of information asymmetry accentuates the undesirable effects of exit from market making.

1. The Options Market. 2. Option Payoffs and Option Strategies. 3. Bounds on Option Prices. 4. European Option Pricing. 5. Option Sensitivities and Option Hedging. 6. American Option Pricing. 7. Options on Stock Indexes, Foreign Currency, and Futures. 8. The Options Approach to Corporate Securities. OPTION! Installation and Quick Start Exercises for OPTION!. Index. Appendix.

Are business cycles mainly the result of permanent shocks to productivity? This paper uses a long-run restriction implied by a large class of real-business-cycle models--identifying permanent productivity shocks as shocks to the common stochastic trend in output, consumption, and investment--to provide new evidence on this question. Econometric test indicate that this common-stochastic-trend / cointegration implication is consistent with postwar U.S. data. However, in systems with nominal variables, the estimates of this common stochastic trend indicate that permanent productivity shocks typically explain less than half of the business-cycle variability in output, consumption, and investment.

ABSTRACT We provide evidence that taxes affect equity valuation by studying British investment trusts having otherwise identical classes of cash‐ and stock‐dividend‐paying shares outstanding. We study 1969–1982, a period in which there were two dramatic changes in tax policy. We find that stock‐dividend shares, which are convertible into cash‐dividend shares, sell at premiums when the tax system favors capital gains and at discounts when the tax advantage of capital gains is reduced. After the 1975 elimination of the tax advantage to stock‐dividend shares, we observe that investors convert virtually all stock‐dividend shares into cash‐dividend shares.

ABSTRACT We investigate the importance of bid‐ask spread‐induced biases on event date returns as exemplified by seasoned equity offerings by NYSE listed firms. We document significant negative return biases on the offering day which explain a large portion of the negative event date return documented in the literature. Buy‐sell order flow imbalance is prominent around the offering and induces a relatively large spread bias. If order imbalances are suspected, the researcher can use returns calculated from the midpoint of the closing bid and ask quotes instead of returns calculated from closing transaction prices to avoid this return bias.

We provide evidence that taxes affect equity valuation by studying British investment trusts having otherwise identical classes of cash- and stock-dividend-paying shares outstanding. We study 1969–1982, a period in which there were two dramatic changes in tax policy. We find that stock-dividend shares, which are convertible into cash-dividend shares, sell at premiums when the tax system favors capital gains and at discounts when the tax advantage of capital gains is reduced. After the 1975 elimination of the tax advantage to stock-dividend shares, we observe that investors convert virtually all stock-dividend shares into cash-dividend shares.

We investigate the importance of bid-ask spread-induced biases on event date returns as exemplified by seasoned equity offerings by NYSE listed firms. We document significant negative return biases on the offering day which explain a large portion of the negative event date return documented in the literature. Buy-sell order flow imbalance is prominent around the offering and induces a relatively large spread bias. If order imbalances are suspected, the researcher can use returns calculated from the midpoint of the closing bid and ask quotes instead of returns calculated from closing transaction prices to avoid this return bias.

We analyze the efficiency and market equilibirum effects of endogenous categorization, where insurance companies classify risks on the basis of insureds' voluntary consumption of products that are correlated with underlying loss propersities, and we show that the use of such categorization may permit the attainment of first-best allocations as competitive Nash equilibria. The optimal insurance premium involves a trade-off between the use of categorization to correct moral hazard externalities generated by the consumption of the product and the use of differential consumption to sort heterogeneous consumers, thereby mitigating the social costs of adverse selection. The efficiency consequences of taxing or subsidizing aggregate, as opposed to individual, consumption is also considered.