In this paper, we analyze the business cycle behavior of home mortgages and consumer credit and investigate whether the observed changes. and in particular observed changes in the comovement between the loan variables and real activity. are likely to be caused by changes in financial markets. We...

They are not well-behaved. The main problem is that one cannot control the radius of convergence when using perturbation techniques. Just outside the radius of convergence, higher-order approximations can easily behave extremely badly, and even within the radius of convergence one can expect...