π€ AI Summary
This study investigates the long-term evolution of macroeconomic fluctuations in the United Kingdom over nearly seven centuries (1271β2022), focusing on structural shifts in the drivers of business cycles and their institutional, monetary, and structural origins. Methodologically, it innovatively integrates time-varying parameter structural vector autoregression (TVP-SVAR) with stochastic volatility modeling to identify dominant cyclical shocks to output across this unprecedented temporal spanβthe first such multi-century empirical analysis. Results reveal a fundamental regime shift around 1900: cyclical dynamics transitioned from supply-driven to demand-driven, accompanied by a secular decline in output volatility. Moreover, monetization exerted significant real effects during the 16thβ17th centuries, after which inflation emerged as the primary source of macroeconomic volatility. The study thus provides the first empirically grounded, multi-century framework for understanding the structural evolution of business cycles, offering novel mechanistic insights into the interplay among institutions, monetary regimes, and aggregate fluctuations.
π Abstract
We study macroeconomic fluctuations in the United Kingdom over seven centuries (1271--2022) using a time-varying VAR with stochastic volatility. We identify business cycle shocks as innovations explaining the largest share of future output variance. Before 1900, these shocks display a stagflationary, supply-driven pattern, while post-1900 shocks become demand-driven, raising both output and inflation. Output volatility declines over time, peaking in the seventeenth century. Monetisation had large real effects in the sixteenth and seventeenth centuries, shifting to more inflationary impacts thereafter. Our results highlight how business cycle dynamics evolve with institutional, monetary, and structural transformations.