This paper investigates purchasing-power parity (PPP) since the late nineteenth century. I collected data for a group of twenty countries over 100 years, a larger historical panel of annual data than has ever been studied. The evidence for long-run PPP is favorable using recent multivariate and...

Technological change was unskilled-labor-biased during the early Industrial Revolution of the late eighteenth and early nineteenth centuries, but is skill-biased today. This fact is not embedded in extant unified growth models. We develop a model of the transition to sustained economic growth...

The PPP puzzle is based on empirical evidence that international price differences for individual goods (LOOP) or baskets of goods (PPP) appear highly persistent or even non-stationary. The present consensus is these price differences have a half-life that is of the order of five years at best,...

What determines sovereign risk? We study the London bondmarket from the 1870s to the 1930s. Our findings support conventional wisdom concerning the low credibility of the interwar gold standard. Before 1914 gold standard adherence effectively signalled credibility and shaved 40 to 60 basis...