The renegotiation of regulatory contracts is known to prevent regulators from achieving the full commitment efficient outcome in dynamic contexts. However, assessing the cost of such renegotiation remains an open issue from an empirical viewpoint. To address this question, we fit a structural...

The renegotiation of regulatory contracts is known to prevent regulators from achieving the full commitment efficient outcome in dynamic contexts. However, assessing the cost of such renegotiation remains an open issue from an empirical viewpoint. To address this question, we fit a structural...

Since the publication by Williamson (1968) of his seminal paper on antitrust there has been a growing recognition by regulators of the need to assess trade-offs between merger-related efficiency gains and merger-induced increases in market power. This paper addresses that need by presenting a...

After deregulation in 1980, competitive pressures forced the large U.S. freight railroads to restructure. Much attention has focused on defensive (cost-cutting) restructuring: until 2004 employment was reduced by 60%, and railroads abandoned many of their lines. Less attention has been given to...

We describe a pair of empirical tests that can be used to evaluate the technological feasibility of separating a vertically integrated network monopoly into a common infrastructure component and competing operating components. We implement the tests with a Generalized McFadden cost function that...

The aim of this paper is to look more carefully at the structure of rail rates that has evolved in the 25-year period since the Staggers Rail Act and to assess its impact on the railroad industry. The paper does this by investigating the relationship between car-type-specific marginal costs and...

We describe a pair of subadditivity tests that can be used to evaluate the technological feasibility of separating a vertically integrated network monopoly into a common infrastructure component and competing operating components. We implement the tests with a Generalized McFadden cost function...