We experimentally test two seminal hypotheses on the impact of competition on firms' management upgrading. In a first experiment, we protect firms from labor market competition by reducing the risk that a freshly trained manager would be poached by a rival firm. We find that this protection does...

Using a large administrate dataset covering the universe of phone calls and airtime transfers in a country over a four year period, we examine the pattern of adoption of airtime transfers over time. We start by documenting strong network effects: increased usage of the new airtime transfer...

We discuss a method aimed at reducing the risk that spurious results are published. Researchers send their datasets to an independent third party who randomly generates training and testing samples. Researchers perform their analysis on the former and once the paper is accepted for publication...

We design a laboratory experiment to investigate bilateral link formation in a setting where payoffs are pair-specific. Our link formation rule is decentralized and players can make link offers and counter-offers, as in a Beckerian marriage market. The game is designed in such a way that a...

We run a novel field experiment to link managers of African manufacturing firms. The experiment features exogenous link formation, exogenous seeding of information, and exogenous assignment to treatment and placebo. We study the impact of the experiment on firm business practices outside of the...

We design an original laboratory experiment to investigate whether redistributive actions hinder the formation of Pareto-improving groups. We test, in an anonymous setting with no feedback, whether people choose to destroy or steal the endowment of others and whether they choose to give to...

We gave US$1,000 cash prizes to winners of a business plan competition in Africa. The competition, entitled 'Aspire', was intended to attract young individuals aspiring to become entrepreneurs. Participants were ranked by committees of judges composed of established entrepreneurs. Each committee...

Standard models of investment predict that credit-constrained firms should grow rapidly when given additional capital, and that how this capital is provided should not affect decisions to invest in the business or consume the capital. We randomly gave cash and in-kind grants to male- and...

We conduct a field experiment to test the demand for flexibility and for soft and hard commitment among clients of a microfinance institution. We offer a commitment contract inspired by the rotating structure of a ROSCA. Additional treatments test ex ante demand for soft commitment (in the form...

What is the effect of exposing motivated youth to firm management in practice? To answer this question, we place young professionals for one month in established firms to shadow middle managers. Using random assignment into program participation, we find positive average effects on wage...