Working Paper
Has income inequality or media fragmentation increased political polarization?
Saving, Jason L.; Duca, John V. (2012)
The increasing polarization of Congressional voting patterns has been attributed to factors including generational shifts, economic conditions, increased media fragmentation, and greater income inequality. The first of these factors is difficult to test with time series data owing to the low frequency of generational shifts, while the tendency of business cycles to reverse suggests that economic cycles are unable to account for long-term shifts in polarization. This leaves two main possible long-run drivers: the increasingly fragmented state of American media as stressed by Prior (2005, 2007) ...
Working Papers , Paper 1206

Working Paper
Income inequality and political polarization: time series evidence over nine decades
Saving, Jason L.; Duca, John V. (2014-01-01)
Rising income inequality and political polarization have led some to hypothesize that the two are causally linked. Properly interpreting such correlations is complicated by the multiple factors that drive each of these phenomena, potential feedbacks between inequality and polarization, measurement issues, and statistical challenges for modeling non-stationary variables. We find that a more precise measure of inequality (the inverted Pareto-Lorenz coefficient) is statistically related to polarization while a less precise one (top 1% income share) is not, and that there are bi-directional ...
Working Papers , Paper 1408

Working Paper
What drives economic policy uncertainty in the long and short runs? European and U.S. evidence over several decades
Saving, Jason L.; Duca, John V. (2016-12-12)
Economic policy uncertainty (EPU) has increased markedly in recent years in the U.S. and Europe, and some have posited a link between this phenomenon and subpar economic growth in advanced economies (see Baker, Bloom, and Davis, 2015). But methodological and data concerns have thus far raised doubts about whether EPU contains marginal and exogenous information about other economic phenomena. Our work analyzes the impact on EPU of several possibly endogenous variables, such as inflation and unemployment rates in countries where EPU is measured. We also consider longer-term technological ...
Working Papers , Paper 1615