Ostensibly, the SEC's new round of regulatory activity is motivated by a bout of well-publicized business scandals and an explosive increase in financial innovations and instruments. Many critics of the “new” SEC question the proportionality and usefulness of the responses, which move the SEC well beyond reliance on disclosure and promotion of transparency. Others argue that more heavy-handed and far-reaching regulation is necessary given the vast changes in financial markets, the increasing importance of (largely unregulated) hedge funds and private equity, and corporate scandals that allege fraud and deception. This paper provides a rationale for studying recent regulatory changes and for addressing the overarching question of how to define the boundaries of SEC intervention in financial markets. The study provides an overview of papers in this special issue and concludes with suggestions for how policymakers can use research to better evaluate the costs and benefits of regulation.

This paper analyzes the relation between agency conflicts and risk management. In contrast to previous contributions, our analysis incorporates not only stockholder-debtholder conflicts but also manager–stockholder conflicts. We show that the costs of both underinvestment and overinvestment are essential in determining the firm's hedging policy. In particular, firms that derive more of their value from assets in place (lower market-to-book ratios), although having lower costs of underinvestment, generally display larger costs of overinvestment. Thus, they may be more likely to hedge to control these overinvestment incentives. Our analysis explains why large profitable firms with fewer growth opportunities tend to hedge more (Bartram et al., 2004). It also provides a number of new predictions relating the benefits associated with risk management to various dimensions of the firm's economic environment.

We investigate how corporate governance impacts firm value by comparing the value and use of cash holdings in poorly and well-governed firms. We show that governance has a substantial impact on value through its impact on cash: 1.00 of cash in a poorly governed firm is valued at only 0.42 to $0.88. Good governance approximately doubles this value. Furthermore, we show that firms with poor corporate governance dissipate cash quickly in ways that significantly reduce operating performance. This negative impact of large cash holdings on future operating performance is cancelled out if the firm is well governed.

Over the past half century, Americans spent a rising share of total economic resources on health and enjoyed substantially longer lives as a result. Debate on health policy often focuses on limiting the growth of health spending. We investigate an issue central to this debate: Is the growth of health spending a rational response to changing economic conditions—notably the growth of income per person? We develop a model based on standard economic assumptions and argue that this is indeed the case. Standard preferences—of the kind used widely in economics to study consumption, asset pricing, and labor supply—imply that health spending is a superior good with an income elasticity well above one. As people get richer and consumption rises, the marginal utility of consumption falls rapidly. Spending on health to extend life allows individuals to purchase additional periods of utility. The marginal utility of life extension does not decline. As a result, the optimal composition of total spending shifts toward health, and the health share grows along with income. In projections based on the quantitative analysis of our model, the optimal health share of spending seems likely to exceed 30 percent by the middle of the century.

Past studies find abnormal returns to buying after repurchase program announcements. We analyze the profitability of trading after both program announcements and individual repurchase trade publication using different trading strategies – market and limit orders. The analysis of trades is possible because of a unique Canadian data set. The highest abnormal returns are earned by companies on their own repurchase trades which benefits the non-tendering shareholders. For the public investor, we find no strategies that, in practice, would earn abnormal returns to buying after program announcements. However, there is qualified evidence of abnormal returns to a limit order strategy following publication of individual repurchase trades.

We study the role of banking relationships in IPO underwriting. When a firm in Japan goes public, it can engage an investment bank that is related through a common main bank, or can select an alternative investment bank. The main bank relationship can be an efficient way for the investment bank to acquire information generated by the main bank, but may give rise to conflicts of interest. We find that main bank relationships give small issuers increased access to equity capital markets, but that issuers of large IPOs often switch to non-related investment banks that are capable of managing large offerings. While investment banks seek to exploit bargaining power with related issuers, issuers respond to expected high issue cost by switching to non-related investment banks. The net result is that total issue costs through related and non-related investment banks are similar. With respect to aftermarket performance and use of proceeds, we find no evidence of conflict of interest or self-dealing for either the main bank or the investment bank.

In this paper, we generalize the notion of Pareto-efficiency to make it applicable to environments with endogenous populations. Two efficiency concepts are proposed, P-efficiency and A-efficiency. The two concepts differ in how they treat potential agents that are not born. We show that these concepts are closely related to the notion of Pareto-efficiency when fertility is exogenous. We then prove versions of the first welfare theorem assuming that decision making is efficient within the dynasty. We discuss two sets of sufficient conditions for noncooperative equilibria of family decision problems to be efficient. These include the Barro and Becker model as a special case. Finally, we study examples of equilibrium settings in which fertility decisions are not efficient, and classify them into ones where inefficiencies arise inside the family and ones where they arise across families.

The term structure of interest rates is often summarized using a handful of yield factors that capture shifts in the shape of the yield curve. In this paper, we develop a comprehensive model for volatility dynamics in the level, slope, and curvature of the yield curve that simultaneously includes level and GARCH effects along with regime shifts. We show that the level of the short rate is useful in modeling the volatility of the three yield factors and that there are significant GARCH effects present even after including a level effect. Further, we find that allowing for regime shifts in the factor volatilities dramatically improves the model’s fit and strengthens the level effect. We also show that a regime-switching model with level and GARCH effects provides the best out-of-sample forecasting performance of yield volatility. We argue that the auxiliary models often used to estimate term structure models with simulation-based estimation techniques should be consistent with the main features of the yield curve that are identified by our model.