Working Papers

Difference-in-differences estimates by levels of a moderator in the Power of the Pill literature
Proof of bias in the OLS estimator of the constrained DD model (will soon be incorporated in the paper)
Coming soon: interactive simulation of constrained model bias
Some of this work appeared previously in a now-defunct working paper titled “The effect of lower ages of majority on oral contraceptive use: Evidence on the internal validity of The Power of the Pill”

Age of Majority and Women’s Early Human Capital Accumulation in Australia
With Ishita Chatterjee of The University of Western Australia
Some of this work appeared previously in a now-defunct working paper titled “The effect of lower ages of majority on oral contraceptive use: Evidence on the internal validity of The Power of the Pill”

Directed Technical Change: a Macro Perspective on Life Cycle Earnings Profiles
Wage-experience profiles for each country in the sample
Appendices for Directed Technical Change and Life-Cycle Earnings Profiles
With Robert Tamura and Michal Jerzmanowski of Clemson University

Directed Technical Change and the Age Demographics of Development


Work in Progress

Bias in difference-in-differences estimates by levels of a moderator

Economics and Ethics: The Impact of Government Integrity on Macroeconomic Performance and Inequality
With Kristine Principe of Niagara University


Preliminary projects

“All Men”? Measuring the rate of commission of sexual assault by men
With James Cragun of Stony Brook University

Demand and supply estimation in the market for cocaine with cross-price and weather instruments

Can social scientists accurately categorize the fields of authors?

Research topics I may never get around to

GDP convergence is now reality

Penn World Tables convergence plot
The points are weighted least squares estimates of \(\alpha\) in \(g_{\text{country}} = \alpha\ln{\left(GDPPerPerson_{\text{country}}\right)} +\epsilon_{\text{country}}\) (weighted by population) with separate regressions for each year, where \(g\) is the annualized growth rate of GDP over the next five years. Data source: Penn World Tables (panels of 182 countries from 1950 to 2014).

Bureaucratic efficiency is increasing around the world

Days to start a business in sub-Saharan Africa over time
Data from the World Bank Doing Business indices