Unlike other investments in the U.S., research and development budgets are not depreciated but expensed. Thus, pre-tax reported earnings fluctuate dollar-for-dollar with changes in R&D budgets. Because executives know more about the firm than outsiders, they may adjust R&D budgets in order to manage accounting earnings and stock prices. Discretionary changes in R&D may also reflect managerial incentives, taxes, and free cash flow. We study a panel of 100 U.S. companies with large R&D budgets for the decade between 1977 and 1986. On average, R&D budget adjustments reduce the anticipated gap between analysts' earnings forecasts and reported income. In the cross-section of firms, more gap closure is associated with high trading volume and high business risk. Less earnings management occurs if the CEO and institutional investors own an important fraction of the shares.

This paper proposes and implements a security design framework to assess why corporate managers issue convertible debt. We examine three theories that make predictions about the design of convertible debt. Our results suggest that some issuers design convertible debt to mitigate asset substitution problems, while others design it to reduce adverse selection problems. We also find that issuers vary convertible debt security design over the business cycle in response to time variation in asset substitution and adverse selection problems. Overall, the results indicate that corporate managers actively alter convertible debt security design to mitigate costly external finance problems. Journal of Economic Literature Classification Number: G32

This paper provides empirical evidence that takeovers can facilitate the efficient redeployment of assets of bankrupt firms. Bidders for bankrupt firms are generally in related industries and often have some prior relationship to the target, suggesting they are well informed with respect to both the value and best use of the target's assets. For a sample of 55 acquisitions in Chapter 11, we find that firms merged with bankrupt targets show significant improvements in operating performance, while matching non-bankrupt transactions show no significant improvement. We also find positive and significant abnormal stock returns for the bidder and bankrupt target at the announcement of the acquisition.Journal of Economic LiteratureClassification Numbers: G33, G34.

We examine parent-subsidiary mergers, transactions that do not entail arm's length bargaining or a change in control. These mergers are typically followed by considerable restructuring of subsidiaries. Minority and parent returns are not significantly different from returns at third party buyouts of parent-controlled subsidiaries, transactions that entail arm's length negotiations and a change in control. Buyer returns are negative, consistent with overbidding. We conclude that parent-subsidiary mergers facilitate corporate restructuring, foster the reallocation of resources toward higher valued uses, and increase value for both parent and subsidiary.

This article analyzes the dynamics of joint labor force behavior of older couples in the United States. Using the Retirement History Survey (RHS) I analyze the determinants of joint retirement and the effect of one spouse's labor force status on the labor force transitions of the other spouse. The results reveal strong associations between the labor force transition probabilities of one spouse and the labor force status of the other spouse. These result from structural differences in exit and entry behavior by the spouse's status. Several lagged endogenous variables have substantial effects on behavior even after controlling for unobserved heterogeneity.

This paper analyzes the effect of uncertainty about the mean return on the risky asset on the portfolio decisions of an investor who has a long investment horizon. Building on the earlier work of Detemple (1986), Dothan and Feldman (1986), and Gennotte (1986), it is shown that the possibility of future learning about the mean return on the risky asset induces the investor to take a larger or smaller position in the risky asset than she would if there were no learning, the direction of the effect depending on whether the investor is more or less risk tolerant than the logarithmic investor whose portfolio decisions are unaffected by the possibility of future learning. Numerical calculations show that uncertainty about the mean return on the market portfolio has a significant effect on the portfolio decision of an investor with a 20 year horizon if her assessment of the market risk premium is based solely on the Ibbotson and Sinquefield (1995) data.