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Working Paper
Assessment Frequency and Equity of the Real Property Tax: Latest Evidence from Philadelphia
Philadelphia’s Actual Value Initiative, adopted in 2013, createsa unique opportunity for us to test whether reassessments at short intervals to true market value and taxing by such values improve equity. Based on a difference-in-differences framework using parcel-level data matched with transactions in Philadelphia and 15 comparable cities, this study finds positive evidence on equity outcomes from more regular revaluations. The quality of assessment, as measured by the coefficient of dispersion, improves substantially after 2014, although the extent of improvement varies across ...
Working Paper
Gravity Channels in Trade
Gravity variables such as distance, adjacency, colony, free trade agreements or language are used to capture the effects of trade costs in empirical studies. By using actual data on trade costs, this paper decomposes the overall effects of such variables on trade into those through three gravity channels: duties/tariffs (DC), transportation costs (TC), and dyadicpreferences (PC). When PC is ignored as is typical in existing studies in the literature, it is shown that nearly all gravity effects are due to distance, 29 percent through DC and 71 percent through TC. The tables turn as the ...