In many markets, user benefits depend on participation and usage decisions of other users giving rise to network effects. Intermediaries manage these network effects and thus act as platforms that bring users together. This paper reviews key findings from the literature on network effects and...

We study the competition between two remanufacturers in the acquisition of used products and the sales of remanufactured products. One firm has a market advantage; we consider two separate cases where either firm could have an acquisition advantage. The problem is formulated as a simultaneous...

This paper studies how transport infrastructure investments affect a bidding war for a firm between two asymmetric countries within a region in a context of imperfect competition, where transport infrastructure investments play the role of a global public good, leading to a reduction in the unit...

For many products, platforms enable sellers to transact with buyers. We show that the competitive conditions among sellers shape the market structure in platform industries. If product market competition is tough, sellers avoid competitors by joining different platforms. This allows platforms to...

We develop a nonparametric instrumental variable approach for the estimation of average treatment effects on hazard rates and conditional survival probabilities, without model structure.We derive constructive identification proofs for average treatment effects under noncompliance and dynamic...

Aggregate exports are not very responsive to real exchange rates, though they respond strongly to trade liberalizations, a fact sometimes referred to as the International Elasticity Puzzle. We use micro data on firms and exports for Ireland to dissect the puzzle. Our identification strategy uses...