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Measuring causal impacts with natural and field experiments: evidence for firms, workers, consumers, and voters
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Resumo(s)
This thesis explores an array of natural and eld experiments to produce causal estimates of the impact of interventions on four populations: firms, workers, consumers, and voters, making use of public and private micro-level data. The first chapter measures the effects on rm performance of a sharp increase in transportation costs on specific c highways. The second chapter investigates the labor market consequences
of an exogenous shock, the unexpected in ow of repatriates following the independence of former Portuguese African colonies. The third chapter analyzes one of the fi rst soda taxes implemented worldwide that rises with sugar content to assess its effects on prices and consumption. The fourth chapter reports on a nationwide eld experiment assessing, for the first time, the capacity of the entire network of a country's ATM to
"get out the vote".
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Palavras-chave
Evidence-based reforms Difference-in-differences Natural experiments Field experiments (Shift-share) instrumental variables Highways Repatriates Migration Consumption taxes Get out the vote Portugal