Why do soft budget constraints exist and persist? In this paper we argue that the prevalence of soft budget constraints can be best explained by the political desirability of softness. We develop a political economy model where politicians cannot commit to policies that are not ex post optimal....

Discrimination is notoriously difficult to document. Convincing tests for discrimination require good measures of the legitimate determinants of the outcome of interest, for example wages and productivity. While few contexts provide data adequate to the task of measuring discrimination, copious...

Assume that an economy is in a state of Keynesian unemployment. Since production is demand-determined there are bootstraps (multiple) equilibria. Then, the more optimist agents are about the future the higher will be theur demand today and hence current production. In that limited sense optimism...

This paper begins by identifying the distinguishing characteristic of the "real business cycle" (RBC) class of macroeconomic models. It then scruitinizes existing evidence, presented in support of the RBC approach, of three types: calibrated general equilibrium models with no monetary sector,...

Does academic economic research produce material of scientific value, or are academic economists writing only for clients and peers? Is economics scholarship uniquely insular? We address these questions by quantifying interactions between economics and other disciplines. Changes in the impact of...

We associate a dynamical system with input-output networks and study its spectral properties. Specifically, we develop a dynamic production network model featuring adjustment costs of changing inputs and thus gradual recovery from temporary TFP shocks. First, we explicitly solve for the output...

The analysis of historical natural experiments has profoundly impacted economics research across fields. We trace the development and increasing application of the methodology, both from the perspective of economic historians and from the perspective of economists in other subdisciplines. We...

In an interdependent world the risks faced by any one agent depend not only on its choices but also on those of all others. Expectations about others' choices will influence investments in risk-management, and the outcome can be sub-optimal investment all round. We model this as the Nash...

The appropriate size and role of government depends on the deadweight burden caused by incremental transfers of funds from the private sector. The magnitude of that burden depends on the increases in tax rates required to raise incremental revenue and on the deadweight loss that results from...

A number of studies – including our own – find a mid-life dip in well-being. We review a psychology literature that claims that the evidence of a U-shape is "overblown" and if there is such a decline it is "trivial". We find remarkably strong and consistent evidence across countries and US...