Knowledge that Transforms

The goal of this paper is the derivation and application of a direct characterization of the inverse of the covariance matrix central to portfolio analysis. Such a characterization, in terms of a few primitive constructs, provides the basis for new and illuminating expressions for key concepts as the optimal holding of a given risky asset and the slope of the risk‐return efficiency frontier faced by the individual investor. The building blocks of the inverse turn out to be the regression coefficients and residual variance obtained by regressing the asset's excess return on the set of excess returns for all other risky assets.

This paper studies thirty‐one highly leveraged transactions (HLTs) that become financially, not economically, distressed. The net effect of the HLT and financial distress (from pretransaction to distress resolution, market‐ or industry‐adjusted) is to increase value slightly. This finding strongly suggests that, overall, the HLTs of the late 1980s created value. We present quantitative and qualitative estimates of the (direct and indirect) costs of financial distress and their determinants. We estimate financial distress costs to be 10 to 20 percent of firm value. For a subset of firms that do not experience an adverse economic shock, financial distress costs are negligible.

This paper studies the impact that capital market imperfections have on the natural selection of the most efficient firms by estimating the effect of the prederegulation level of leverage on the survival of trucking firms after the Carter deregulation. Highly leveraged carriers are less likely to survive the deregulation shock, even after controlling for various measures of efficiency. This effect is stronger in the imperfectly competitive segment of the motor carrier industry. High debt seems to affect survival by curtailing investments and reducing the price per ton‐mile that a carrier can afford to charge after deregulation.

The existing empirical literature fails to agree on the nature of the intertemporal relation between risk and return. This paper attempts to resolve the issue by estimating a conditional two‐factor model motivated by Merton's intertemporal capital asset pricing model. When long‐term government bond returns are included as a second factor, the partial relation between the market risk premium and conditional market variance is found to be positive and significant. The paper also helps explain the convoluted empirical relation between the market risk premium, conditional market variance, and the nominal risk‐free rate previously reported in the literature.

Policymakers in emerging markets are increasingly concerned about the consequences for the domestic equity market when companies list stock abroad. We show that the effects of cross‐listing depend on the quality of intermarket information linkages. We investigate these issues with unique data from the Mexican equity market. The impact of cross‐listing is complex—balancing the costs of order flow migration against the benefits of increased intermarket competition. These effects are exacerbated by equity investment barriers that induce segmentation of the domestic equity market. Consequently, the benefits and costs of cross‐listing are not evenly spread over all classes of shareholders.

This paper establishes empirically the existence of specialization in private‐market corporate lending, adding a new dimension to the public versus private debt distinctions now common in the literature. Comparing corporate loans made by banks and by finance companies, we find that the two types of intermediaries are equally likely to finance information‐problematic firms. However, finance companies tend to serve observably riskier borrowers, particularly more leveraged borrowers. Evidence supports both regulatory and reputation‐based explanations for this specialization. In passing, we shed light on various theories of debt contracting and intermediation and present facts about finance companies.

This paper investigates the causes and consequences of activist block share purchases in the 1980s. We find that activist investors were most likely to purchase large blocks of shares in highly diversified firms with poor profitability. Activists were not less likely to purchase blocks in firms with shark repellents and employee stock ownership plans. Activist block purchases were followed by increases in asset divestitures, decreases in mergers and acquisitions, and abnormal share price appreciation. Industry‐adjusted operating profitability also rose. This evidence supports the view that the market for partial corporate control plays an important role in limiting agency costs in U.S. corporations.

An institution holding shares in a firm can use information about the firm both for trading (“speculation”) and for deciding whether to intervene to improve firm performance. Intervention increases the value of the institution's existing shareholdings, but intervention only increases the institution's trading profits if it enhances the precision of the institution's information relative to that of uninformed traders. Thus, the ability to speculate can increase or decrease institutional intervention. We examine key factors that affect the intervention decision, the usefulness of “short‐swing” provisions and restricted shares in encouraging institutional intervention, and implications for ownership structure across different firms.

Unlike Dutch auction repurchases and tender offers, open‐market repurchase programs do not precommit firms to acquire a specified number of shares. In a sample of 450 programs from 1981 to 1990, firms on average acquire 74 to 82 percent of the shares announced as repurchase targets within three years of the repurchase announcement. We find that share repurchases are negatively related to prior stock price performance, suggesting that firms increase their purchasing depending on its degree of perceived undervaluation. In addition, repurchases are positively related to levels of cash flow, which is consistent with liquidity arguments.

This paper investigates the informational role of transactions volume in options markets. We develop an asymmetric information model in which informed traders may trade in option or equity markets. We show conditions under which informed traders trade options, and we investigate the implications of this for the linkage between markets. Our model predicts an important informational role for the volume of particular types of option trades. We empirically test our model's hypotheses with intraday option data. Our main empirical result is that negative and positive option volumes contain information about future stock prices.