We consider consumer responsiveness to changes in the macroeconomic environment (i.e. product demand sensitivity) to be a systematic industry characteristic useful to studying how industrial diversification adds value. We argue that diversified firms, with the advantages of their internal capital market and the imperfectly correlated cash flows of their segments, will perform better than focused firms when the demand sensitivity of a product increases. Our empirical evidence reveals a significant diversification premium associated with an increase in sensitivity. Moreover, such premium predominantly exists during recessionary periods, disappearing in the presence of low coinsurance and inefficient use of the internal capital market. Our results are robust to alternative measures of sensitivity and performance metrics, different empirical model specifications, and to the concern of possibly biased estimations associated with the sample of diversified and focused firms.

This paper investigates the effects of ownership patterns on banks’ cost and profit efficiencies taking a sample of 607 commercial banks operating in 53 African countries during the period 2005–2015. Using pooled and modified true fixed effects (TFE) stochastic frontier panel approaches, we obtain two principal results. First, foreign-owned banks are not more profit or cost efficient than their domestic peers. Second, privately owned banks outperform state-owned banks. These findings result not only from bank-level inefficiencies but are explained by bank-level characteristics and macroeconomic conditions. Specifically, larger, older, and listed banks are associated with higher profit efficiency. This study also reveals that ownership concentration (blockholding) has adverse effects on the efficiency of banks.