We review the aid effectiveness literature to assess whether foreign aid given to areas of limited statehood can be expected to promote economic and social outcomes in the recipient country. We distinguish different types of aid, motives for granting it, recipient country policies and...

We assess the robustness of previous findings on the determinants of terrorism. Using extreme bound analysis, the three most comprehensive terrorism datasets, and focusing on the three most commonly analyzed aspects of terrorist activity, i.e., location, victim, and perpetrator, we re-assess the...

Over the last several decades, both economists and political scientists have shown interest in coups d’état. Numerous studies have been dedicated to understanding the causes of coups. However, model uncertainty still looms large. About one hundred potential determinants of coups have been...

We study the effect of a corruption reflection index on internal conflict in Iran using a novel measure of corruption based on newspaper coverage. We use the Vector Autoregression (VAR) model and its applied tools of impulse response and variance decomposition analyses to track the response of...

We study the extent to which migrant inflows to the United States affect the political polarization of campaign donors and the ideology of politicians campaigning for the House of Representatives in the 1992-2016 period. Implementing various polarization measures based on ideology data derived...

Although international sanctions are a widely used instrument of coercion, their economic effects are still not fully understood. This study uses a novel dataset and an event study approach to evaluate the economic consequences of international sanctions, thereby accounting for pre-treatment...

This paper studies how an increase in the number of armed groups operating within an area affects the amount of organized political violence. We use plausible exogenous variation in the number of armed groups in Pakistan, by exploiting the split of a major group due to the natural death of its...

We investigate whether the stock of foreigners residing in a country leads to a larger number of terrorist attacks on that country. Our instrument for the stock of foreigners relies on the interaction of two sets of variables. Variation across host-origin-dyads results from structural...

In this paper, we investigate the economic returns to industrial espionage by linking information from East Germany's foreign intelligence service to sector-specific gaps in total factor productivity (TFP) between West and East Germany. Based on a dataset that comprises the entire flow of...