We review and interpret the main theoretical developments in the gravity literature from its very early, a-theoretical applications to the latest structural contributions. We also discuss challenges and implement methods to estimate empirical gravity equations. We finish with a presentation and...

We review and interpret the main theoretical developments in the gravity literature from its very early, a-theoretical applications to the latest structural contributions. We also discuss challenges and implement methods to estimate empirical gravity equations. We finish with a presentation and...

We estimate the elasticity of substitution between high-skill and low-skill workers using panel data from 32 countries during 1970-2015. Most existing estimates, which are based only on U.S. micro data, find a value close to 1.6. We bring international data together with a theory-informed macro...

Using newly created data containing real output per worker, real physical capital per worker, and human capital per worker for US states from 1840 to 2000, Turner et. al (2007) analyze the growth rates of aggregate inputs and total factor productivity (TFP). We continue this line of work by...

This paper examines the role of individual instruction and teacher quality in determining economic growth and convergence across school districts. The model shows that if teacher quality is more important for human capital accumulation than individual instruction, human capital convergence will...