We investigate the role of networks of military alliances in preventing or encouraging wars between groups of countries. A country is vulnerable to attack if there is some fully-allied group of countries that can defeat that country and its (remaining) allies based on a function of their...

The paper investigates determinants of investments in state capacity and institutional change in contemporary Ukraine. After formulating a simple sequential two-stage model of investments in state capacity, the paper estimates autoregressive distributed lag and vector autoregressive models to...

We review the effects on the Covid-19 pandemic on inequalities in education, the labour market, household living standards, mental health, and wealth in the UK. The pandemic has pushed up inequalities on several dimensions. School closures particular disrupted the learning of poorer children,...