In an online experiment with a representative US sample (N=12,960) we show that increasing the salience of an economic or cultural conflict without providing any news boosts disagreement on a range of political issues by 8-35%. The data support two key predictions of the Bonomi et al. (2021)...

We study the communication strategies on Twitter/X of 367 political leaders in 21 countries, focusing on electoral competition between populists and non-populists. We measure polarization by the ease with which the leader can be classified as populist or not, conditional on his tweet. We find...

Why did the industrial revolution occur in Europe and not in China, despite China being well ahead of Europe in terms of economic and technological achievements several centuries earlier? We revisit this long-standing question from a new perspective. We emphasize the importance of the different...

We revisit the optimal-contract approach to the design of monetary institutions, in the light of the Zero Lower Bound (ZLB) on interest rates and the resort to Quantitative Easing (QE) in recent years. Four of our lessons have not yet been incorporated in the practices of inflation targeting...