On revolutions

Technological Revolutions

In skill-biased (de-skilling) technological revolutions learning investments required by new machines are greater (smaller) than those required by preexisting machines. Skill-biased (de-skilling) revolutions trigger reallocations of capital from slow(fast-) to fast(slow-) learning workers, thereby reducing the relative and absolute wages of the former. The model of skill-biased (de-skilling) re...

Philosophical Revolutions

Oogenesis: Matrix Revolutions

The mechanism of egg-chamber elongation during Drosophila oogenesis has always been mysterious. A new study shows that the egg chambers spin around their long axis laying down polarised extracellular matrix, which acts as a molecular corset to restrict radial expansion.

Debating the Color Revolutions

In Lucan Way’s insightful, highly structural account of the color revolutions, they had to happen.1 Each was separately determined by the weakness of the authoritarian regimes. As Way puts it, “regime collapses have resulted more from authoritarian weakness than opposition strength” (62). For Way, it is even misleading to conceptualize these events as revolutions; they were authoritarian turnov...

Business Cycles with Revolutions

This paper develops an empirical macroeconomic framework to analyze the relationship between major political disruptions and business cycles of a country. We combine a new dataset of political revolutions (mass domestic political campaigns to remove dictators and juntas) across the world since 1960, with coup data and traditional macro data (of output, investment, trade, inflation and exchange ...