Purpose – The main purpose of this paper is to empirically examine how firm-specific (idiosyncratic) and macroeconomic risks affect the external financing decisions of UK manufacturing firms. The paper also explores the effect of both types of risk on firms' debt versus equity choices....

We propose a theory of optimal firm financing given nested information problems of adverse selection and agency cost. We prove that there exists a unique perfect Bayesian equilibrium with novel features: First, three types of optimal contracts arise endogenously, i.e., equity, transparent debt...