In the canonical model of investments, the optimal fractions in the risky assets do not depend on the time horizon. This is against empirical evidence, and against the typical recommendations of portfolio managers. We demonstrate that if the intertemporal coefficient of relative risk aversion is...

Two measures of an error-ridden explanatory variable make it possible to solve the classical errors-in-variable problem by using one measure as an instrument for the other. It is well known that a second IV estimate can be obtained by reversing the roles of the two measures. We explore a simple...

We develop a bioeconomic model to analyze a sole-owner fishery with fixed costs as well as a continuous cost function for the generalized Cobb-Douglas production function with increasing marginal returns to effort level. On the basis of data from the North Sea herring fishery, we analyze the...

Dynamic optimization problems cover a large class of problems in theoretical and applied economics. A simple iterative algorithm with fast convergence is proposed. It is demonstrated that the algorithm in a few steps produce excellent analytic (closed form) approximations including error bounds...

This article analyzes the value-relevance of industry-based and resource-based competitive advantage in a large sample of firms listed on the Oslo Stock Exchange. We measure competitive advantage by a single variable and perform a new decomposition into its underlying sources. In 1986-2005, the...

A benchmark result in public economics is that it is possible to increase both tax revenue and welfare by making a monopoly subject to ad valorem taxes rather than unit taxes. We show that such revenue and welfare dominance does not hold in two-sided markets.

In this paper we compare the profitability of a merger between two firms (one firm fully acquires another) and the profitability of a partial ownership arrangement between the same two firms in which the acquiring firm obtains corporate control over the pricing decisions of the acquired firm. We...

We analyze a Hotelling model where consumers either buy one out of two goods (single-purchase) or both (multi-purchase). The firms’ pricing strategies turn out to be fundamentally different if some consumers multi-purchase compared to if all single-purchase. Prices are strategic complements...

Empirical evidence shows that as of 2006, nearly every fifth large U.S. public corporation was all-equity financed and that the corresponding average cash holding were nearly twice as high as of the average U.S. firm. This paper therefore presents a simple real-options model to characterize the...

This paper attempts to empirically test the effect that wind power production in Denmark has on volatility of the nordpool wholesale electricity prices. The main result is that wind power tends to significantly reduce intraday volatility but increases volatility over larger time windows. The...