This paper aims at investigating the relationship between firms' profit efficiency, access to finance and innovation activities. We enrich our understanding on firms' performance by adopting the stochastic frontier approach (SFA), which allows us to estimate profit functions and to obtain...

We examine a large and unique panel containing survey and financial statement data on small and medium sized private enterprises (SMEs) in Germany from 1991 to 2011. From the survey data, we derive a financial constraints measure based on managers' self-perception. We find that our measure...