This paper analyses the practice of firms to offer different prices to consumers according to the past purchase behaviour (BBPD) in the context of two-sided markets. In a two-period model, two platforms compete for heterogeneous firms and consumers. Platforms are allowed to discriminate prices...

This paper presents a dynamic factor model where the extracted factors and shocks are given a clear economic interpretation. The economic interpretation of the factors is obtained by means of a set of over-identifying loading restrictions, while the structural shocks are estimated following...

This paper develops a Spatial Vector Auto-Regressive (SpVAR) model that takes into account both the time and the spatial dimensions of economic shocks. We apply this framework to analyze the propagation through space and time of macroeconomic (inflation, output gap and interest rate) shocks in...

Recent evidence suggests that aid induces migration. However, total migration is quite general from a policy perspective since what explains the welfare consequences of migration is the extent of emigration selection. In this paper we ask whether skilled or unskilled migration is more sensitive...

This paper employs a production frontier approach that allows distinguishing technologic progress from efficiency development. Data on 35 African countries in 1970-2007 show that efficiency losses have constrained growth in Africa while technology progress has played a marginal growth enhancing...

In anarchic settings, the potential rivals are dragged in an arms race that can degenerate in an open war out of mutual suspicion. We propose a novel commitment device for contestants to avoid both arming and fighting. We allow the players to decentralize the two core decisions that determine...

This paper discusses possible ways to overcome the situation of physical isolation and the multiple failures that pervade Andean villages. Specifically, it studies a training program developed by a Peruvian NGO, which aims at triggering the development of a market for agricultural services that...

This paper looks at ‘the other side’ of the much-celebrated microfinance revolution, namely its potential impact on the conditions of access to credit for nonmembers (the residual market). It uses a standard adverse selection framework to show the advantage of group lending as a single...

This paper studies the role of ethno-linguistic diversity on risky sexual behavior and HIV status of individuals. We compute three different measures of ethno-linguistic heterogeneity and show that ethno-linguistic heterogeneity is positively related to risky sexual behavior and HIV status of...