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...

This article is an attempt to shed light on the specification and identification of inefficiency in stochastic frontiers. We consider the case of a regulated firm or industry. Applying a simple principal-agent framework that accounts for informational asymmetries to this context, we derive the...

Recent economic theories have investigated the susceptibility of diverse public bureaucratic structures to capture by private industry. In particular, Laffont and Martimort (1999) propose that the separation of regulatory powers will reduce the threat of capture. We analyse investor reaction to...

This Paper studies the design of lawmaking and law enforcement institutions based on the premise that law is inherently incomplete. Under incomplete law, law enforcement by courts may suffer from deterrence failure. As a potential remedy, a regulatory regime is introduced. The major functional...

Regulators have recently shown an increased sensitivity to the issue of price squeezes, especially telecom regulators in European countries. This Paper analyses the relevance and the scope of price squeeze tests as proposed by practitioners and economists, taking the existing regulatory...

Recent takeover activity has been characterized by broader participation in acquiror financing on both debt and equity sides. We focus on private equity buyouts, and investigate whether the number of financing participants is related to the likelihood of insider trading prior to the bid...

We develop a dynamic model to assess the effects of liquidity and leverage requirements on banks' insolvency risk. The model features endogenous capital structure, liquid asset holdings, payout, and default decisions. In the model, banks face taxation, flotation costs of securities, and default...

We consider the impact of a regulatory process forcing an incumbent telecom operator to make its local broadband network available to other companies (local loop unbundling, or LLU). Entrants are then able to upgrade their individual lines and offer Internet services directly to customers....

Bailout expectations have led banks to behave imprudently, holding too little capital and relying too much on short term funding to finance long term investments. This paper presents a model to rationalize a constructive ambiguity approach to liquidity assistance as a solution to forbearance....

Periods of high indebtedness have historically been associated with a rising incidence of default or restructuring of public and private debts. Sometimes the debt restructuring is more subtle and takes the form of 'financial repression'. Consistent negative real interest rates are equivalent to...