In the context of a green energy transition, capital adjustment costs render effective substitution between clean and dirty energy sources finite and endogenous, despite infinite long-run substitutability. Ramsey optimal paths robustly frontload clean investment before exhaustion of a given...

The existence of an environmental limit in the Solow-Swan economy changes the nature of economic growth, but does not preclude it. When atmospheric greenhouse gases reach a predetermined absolute threshold, further growth requires a permanently expanding, resource-intensive mitigation effort. If...

This paper surveys the capacity of simple macroeconomic models - ”three easy pieces” - to account for persistent and positive valuations of privately issued assets based on the blockchain. Each of these three models - transactions demand for a means of payment, consumption-based capital...

Evaluating real convergence or divergence in the EU is challenging because it is diffi cult to fi nd an appropriate counterfactual or comparison benchmark, or to formulate one. Should we compare the status quo with convergence that would have been obtained had the European Union (EU) never...

The sustained rise in German unemployment since 1973 poses a problem of critical importance for the world economy. Fewer than two decades ago, Germany boasted an average unemployment rate of under 1% and imported labor to relieve chronic labor shortages. By the mid-1980s, unemployment had risen...

Firing frictions and renegotiation costs affect worker and firm preferences for rigid wages versus individualized Nash bargaining in a standard model of equilibrium unemployment, in which workers vary by observable skill. Rigid wages permit savings on renegotiation costs and prevent workers from...