It has been suggested that information has the three following uses:1. Information can be employed to earn trading profits.2. Information can improve the operating decisions of a firm or group of firms and thereby increase the stock price.3. Information can reduce the risk of a firm or group of firms and thereby increase the stock price.

Using weekly call option prices on twenty-five stocks over a ten-year period (1975–1985) and calls on the S&P 500 stock-index futures, we find that ex ante market volatility follows a mixed mean-reverting diffusion with noise process. Changes in volatility are correlated across stocks and a marketwide volatility effect is found. Strong forces pull the volatility back to its long-term value. The findings suggest the development of new option pricing models.

Abstract ABSTRACT: There are several aspects of the international business environment which affect the setting of a transfer price. These items include the various methods and rates of income taxation; quotas and duties imposed on imported materials; capital flow restrictions and currency regulations imposed by a host government; and managerial preferences for risk avoidance through consideration of risks associated with foreign exchange rate fluctuations, rates of inflation and nationalization. Also, the behavioral dimension of managerial rewards and controls must be considered in the transfer pricing problem. Since transfer prices usually cannot be set to accomplish all of these goals simultaneously, some means must be devised by which the firm's multiple objectives are optimized, In this vein, the transfer pricing problem is formulated in both a single-objective and a multiple-objective approach for comparison purposes. Specifically, the transfer pricing problem is couched in both a linear programming and a goal programming framework to allow for the optimization of differing tax rates, profit requirements, and exposure and nationalization risks around the world.

Capital market data were used to examine the divestiture effects pertaining to deregulation, the dropping of antitrust charges, and the reversing of the co-insurance effect associated with the recent breakup of AT&T. The empirical results of the study indicate that significant economic events took place during the breakup process, which led to transfers of wealth from various parties to the securityholders of AT&T. The results also indicate that the buffering effect of regulation was reduced as AT&T went through the total deregulation process. This is in accordance with Peltzman's prediction.

ABSTRACT Capital market data were used to examine the divestiture effects pertaining to deregulation, the dropping of antitrust charges, and the reversing of the co‐insurance effect associated with the recent breakup of AT&T. The empirical results of the study indicate that significant economic events took place during the breakup process, which led to transfers of wealth from various parties to the securityholders of AT&T. The results also indicate that the buffering effect of regulation was reduced as AT&T went through the total deregulation process. This is in accordance with Peltzman's prediction.