We present a static general equilibrium model of an economy with agents with heterogeneous wealth and endogenous credit constraints created by partial loan recovery rates. Higher loan recovery rates and better bankruptcy protection increase output and credit penetration, while the former raises the average interest rate spread and the latter decreases it. We also study
We analyze a market where two firms producing a homogenous good compete by means of two mechanisms: prices and a loyalty bonus. We assume that firms act simultaneously when posting their loyalty bonus and prices. Consumers who purchase from a firmin the first period must return the bonus in case they switch providers in the