Ep. 243: Charles Engel on Currency Models, Carry Trades and Capital Flows
Nov 22, 2024
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In this insightful discussion, Charles Engel, the Donald Hester Professor of Economics at the University of Wisconsin, delves into currency models and exchange rate dynamics. He explores how the US dollar serves as a paradoxical safe-haven currency, even amid heavy debts. Engel critiques traditional forecasting methods and highlights modern approaches that consider financial variables and real interest rates. His thoughts on carry trades and the implications of central bank policies offer a valuable perspective on international monetary dynamics.
Engel highlights that incorporating financial variables like liquidity and safe-haven demand significantly improves understanding of exchange rate movements.
He emphasizes the critical influence of credible central bank policies on currency valuations, capital flows, and investor behavior in financial markets.
Deep dives
Charles Engel's Academic Journey
Charles Engel reflects on his academic background, initially pursuing various majors before settling on political science and economics. He emphasizes that his path to academia wasn't preordained; rather, it evolved as he recognized his strengths in economics during graduate studies. Engel acknowledges that the perception of academia being a less lucrative career choice has shifted over time, particularly in economics, where the field has gained financial recognition. His thesis, centered on exchange rates and international financial topics, laid the foundation for his ongoing research interests.
Evolution of Exchange Rate Models
Engel discusses the historical context of exchange rate models, particularly referencing the influential Mies-Rogoff paper from the 1980s, which posited that traditional economics failed to accurately forecast exchange rates. Central to these models were factors like interest rates and trade balances, yet they seemed insufficient in predicting exchange rate behavior. Recent research has revealed that incorporating financial variables, such as market liquidity and the dollar's safe haven status, enhances our understanding of exchange rate movements. Notably, Engel points out that although these new models align well with economic theory, the traditional elements of interest and trade still play a vital role in current models.
The Safe Haven Effect of the Dollar
Engel elaborates on why the U.S. dollar retains its status as a safe haven currency, even amidst an environment of ongoing external debt and trade deficits. He argues that demand for the dollar, particularly during periods of financial stress, creates a self-fulfilling cycle whereby its value increases simply because it is perceived as a stable asset. This phenomenon is linked to the dollar’s liquidity advantages in the global financial system, where institutional preferences for dollar-denominated assets amplify during crises. Engel theorizes that the perception of the Federal Reserve as a responsible monetary authority helps maintain the dollar's appeal, emphasizing its critical role in global finance.
Influence of Central Bank Policies
The dialogue shifts to the significant impact of central banks and their monetary policies on exchange rates, with Engel noting that improved credibility in central bank operations has enabled traditional economic variables to regain relevance in forecasting. Engel argues that credible monetary policies create a stable environment where expectations around inflation and interest rates can effectively influence currency valuations. He highlights that the dynamics of quantitative easing and tightening have substantial effects on capital flows and that these actions can alter investor behavior towards emerging markets. Engel’s work suggests that understanding the interplay of monetary policy, liquidity, and investor psychology is essential for accurate forecasting in today's economic landscape.
Charles Engel is Donald Hester Professor of Economics at the University of Wisconsin. He is also a Research Associate at the National Bureau of Economic Research and a Research Fellow at the Centre for Economic Policy Research. He has been a consultant to the Dallas and Chicago branches of the U.S. Federal Reserve, the European Central Bank, and the Bank of England. In this podcast we discuss the standard model to explain FX movements, how to forecast FX, and the importance of safe-haven and liquidity demand for the dollar.