The Swedish record of enormous compression of relative wages under centralized “solidarity” bargaining, followed by substantial decompression of wages after central bargaining broke down, supplies observations well suited to empirical evaluation of arguments about the response of productive efficiency to shifts in wage distribution. We obtain no results supporting “fairness, morale, and cohesiveness” theories implying that wage leveling within workplaces and industries may enhance productivity. Reduction of interindustry wage differentials evidently did, however, contribute positively to aggregate output and productivity growth, most likely for the structural reasons first emphasized by Swedish trade union economists almost a half century ago.

This paper focuses on pricing and hedging options on a zero-coupon bond in a Heath-Jarrow-Morton (1992) framework when the value and/or functional form of forward interest rates volatility is unknown, but is assumed to lie between two fixed values. Due to the link existing between the drift and the diffusion coefficients of the forward rates in the Heath, Jarrow and Morton framework, this is equivalent to hedging and pricing the option when the underlying interest rate model is unknown. We show that a continuous range of option prices consistent with no arbitrage exist. This range is bounded by the smallest upper-hedging strategy and the largest lower-hedging strategy prices, which are characterized as the solutions of two non-linear partial differential equations. We also discuss several pricing and hedging illustrations.

It has generally been assumed that the potential commission revenue is an important determinant of a sell-side analyst's decision of what firms to cover and what information to publicly release. However, because stock volume has not been disaggregated on a brokerage-firm level, uncertainty remains regarding the economic importance of the relation between analyst coverage and brokerage-firm volume. Using a unique data set that identifies the broker(s) involved in each trade, I find that brokerage volume is significantly higher in covered stocks than in uncovered stocks. On average, brokers increase their market share in covered stocks by 3.8% relative to uncovered stocks.

The idea that banks exist to reduce the costs of monitoring is central to modern theories of financial intermediation. The fact that banks are generally granted senior positions on their small-business loans, however, is hard to reconcile with the typical view that junior lenders have the best incentives to engage in this costly monitoring. Our paper addresses this puzzling contradiction by showing that bank seniority plays an important role in encouraging the formation of valuable bank–firm relationships. The intuition behind our model lies in the fact that once the firm's prospects have deteriorated, junior creditors have incentives much like those of the firm's shareholders. Thus, it is the most senior claimant that benefits from helping the firm improve its quality. If banks are made junior to other creditors, they benefit little from additional investment in the firm during times of poor performance and hence will have little incentive to build relationships that enable them to determine the value of such an investment. As a result, making the bank senior improves its incentives to build a relationship with the firm, thereby fulfilling an important function of intermediated debt. Journal of Economic Literature Classification Numbers: G21, G32.

We provide evidence on the validity of the it conglomeration hypothesis versus the strategic focus hypothesis for financial institutions using data on U.S. insurance companies. We distinguish between the hypotheses using profit scope economies, which measure the relative efficiency of joint versus specialized production, taking both costs and revenues into account. The results suggest that the conglomeration hypothesis dominates for some types of financial service providers and the strategic focus hypothesis dominates for other types. This may explain the empirical puzzle of why joint producers and specialists both appear to be competitively viable in the long run. Journal of Economic Literature Classification Numbers: G22, G28, G34, L23, L89.

Empirical researchers have frequently rejected the expectations hypothesis. The expectations hypothesis, however, has seldom, if ever, been tested at the extreme short end of the term structure where maturities are measured in days or weeks. Using overnight, weekly, and monthly repo rates, I find that term rates are almost unbiased estimates of the average overnight rate. This evidence provides new support for the expectations hypothesis.

This article develops an efficient and accurate method for numerical evaluation of the integral equation which defines the American put option value function. Numerical integration using Gaussian quadrature and function approximation using Chebyshev polynomials are combined to evaluate recursive expectations and produce an approximation of the option value function in two dimensions, across stock prices and over time to maturity. A set of such solutions results in a multidimensional approximation that is extremely accurate and very quick to compute. The method is an effective alternative to finite difference methods, the binomial model, and various analytic approximations.