We test the interest rate sensitivity of subprime credit card borrowers using a unique panel data set from a UK credit card company. What is novel about our contribution is that we were given details of a randomized interest rate experiment conducted by the lender between October 2006 and...

Recent research on earnings dynamics reveals a great deal of heterogeneity in all parameters that govern underlying processes. In particular, there appears to be considerable heterogeneity in the trend, with some workers having a strong positive trend, and other having no trend, or, even a...