In this paper, we examine sequential exercise strategies by warrantholders and the gain from hoarding warrants. We analyze several obstacles to acquiring large blocks in order to exploit sequential strategies. First, we identify several reinvestment policies for which sequential exercise is not advantageous, thereby eliminating the gain from hoarding. However, sequential exercise strategies may be advantageous for monopoly or oligopoly warrantholders, even absent dividends, because using exercise proceeds to repurchase stock or to expand the firm's scale increases the riskiness of an equity share. Second, oligopoly warrantholders can receive a smaller warrant value than perfectly competitive warrantholders, suggesting a potential cost to unsuccessful hoarding.

The speed and path of adjustment in stocks to the degree of earnings surprise in their quarterly announcements are studied using price‐volume transactions data. A differential price‐adjustmentp rocess was observed,w ith stocks having large,p ositive earnings surprises experiencing a faster adjustment compared with those stocks with negative earnings surprises. Volume, transaction frequency, and size were found to be directly related to the absolute degree of surprise,b ut very favorablee arnings‐surprises tocks experienced initially a large number of smaller trades while stocks with large unfavorable earnings surprises had relatively fewer transactions but higher volume per trade.

Based on courses developed by the author over several years, this book provides access to a broad area of research that is not available in separate articles or books of readings. Topics covered include the meaning and measurement of risk, general single-period portfolio problems, mean-variance analysis and the Capital Asset Pricing Model, the Arbitrage Pricing Theory, complete markets, multiperiod portfolio problems and the Intertemporal Capital Asset Pricing Model, the Black-Scholes option pricing model and contingent claims analysis, 'risk-neutral' pricing with Martingales, Modigliani-Miller and the capital structure of the firm, interest rates and the term structure, and others.

In this paper, ex ante efficient portfolio selection strategies are developed to realize potential gains from international diversification under flexible exchange rates. It is shown that exchange rate uncertainty is a largely nondiversifiable factor adversely affecting the performance of international portfolios. Therefore, it is essential to effectively control exchange rate volatility. For that purpose, two methods of exchange risk reduction are simultaneously employed: multicurrency diversification and hedging via forward exchange contracts. The empirical findings show that international portfolio selection strategies designed to control both estimation and exchange risks almost consistently outperform the U.S. domestic portfolio in out‐of‐sample periods.

In this paper, we examine the stock price reactions to announcements of new security offerings by Real Estate Investment Trusts (REITs). REITs offer a unique setting in which to study these events because they do not pay taxes at the firm level. Theory suggests that the net tax gain to corporate borrowing is unambiguously negative for a REIT. Contrary to some recent studies, however, we find a positive stock price reaction to debt offerings, while the negative equity‐issuance effect is preserved. Further empirical evidence lends support to signalling as the explanation for the positive significant debt‐issuance effect.