While much research in political economy points out the benefits of "limited government," political scientists have long emphasized the problems created in many less developed nations by "weak states," which lack the power to tax and regulate the economy and to withstand the political and social...

Sweden’s quality of life, public health, and educational attainment indicators are among the best in the world. Although it is impossible to pin down the optimal size of the welfare state precisely, the government has generally agreed to have become too big by the late 1980s. Globalization is...

We present a model where heterogeneous districts choose both whether to experiment and the policies to experiment with. Since districts learn from each other, the first-best requires that policy experiments converge so that innovations are useful also for neighbors. However, the equilibrium...

Keynes's “Grandchildren” essay famously predicted both a rapid increase in productivity and a sharp shrinkage of the workweek – to fifteen hours – over the century from 1930. Keynes was right (so far) about output per capita, but wrong about the workweek. The key reason is that he failed...