The authors compare the two merger control systems currently employed worldwide: a mandatory system based on merger size threshold and a voluntary system with ex-post monitoring and fines. The voluntary system possesses two informational advantages: (i) the enforcement agency employs more...

The authors compare the two merger control systems currently employed worldwide: a mandatory system based on merger size threshold and a voluntary system with ex-post monitoring and fines. The voluntary system possesses two informational advantages: (i) the enforcement agency employs more...

In infrastructure, the possibility of a positive relationship between operators'profitability and the degree of concentration is a major political issue in view of the wide diversity of feelings about the potential role of the private sector. This is particularly important in view of (i) the...

Policy recommendations for infrastructure provision usually build on a well-established understanding of best practice for sector governance. Too rarely are they adapted to the country-specific political environment even if this is an area where policy choices are likely to be subject to private...

Policy recommendations for infrastructure provision usually build on a well-established understanding of best practice for sector governance. Too rarely are they adapted to the country-specific political environment even if this is an area where policy choices are likely to be subject to private...

Over the last 20 years, demand for air passenger transport has grown dramatically. At the same time, the two largest domestic airlines merged and several smaller entrants exited without being able to make significant inroads. As a result, the industry is highly concentrated, with a dominant firm...

This article investigates how antitrust agencies should structure the disclosing of information about efficiency gains from interested parties (merging firms, and competitors) in merger control. We analyze the particular case of a horizontal merger with danger of foreclosure, where welfare can...

In this note we study a model of vertical hierarchies where the allocation of residual claimancy is endogenous and is determined jointly with production and contractual decisions. We show that the (equilibrium) allocation of residual claimancy may be affected by production externalities across...

The purpose of this paper is to provide a quantitative assessment of the degree of concentration in infrastructure industries at the regional and global levels. We calculate regional and global concentration indexes for electricity generation and distribution, water and sanitation, and fixed and...

This paper analyzes the experience, high incidence, lesson learned and reflections on the issue renegotiations in Latin America, based in the evolution of PPP contracts through the last 25 years. The paper also shows how countries via new PPP laws, regulations, norms and specific platforms can...