We study how financial market efficiency affects a measure of diversification of output across industrial sectors … and for various levels of disaggregation, we construct a benchmark measure of diversification as the set of allocations of … patterns disappear when we employ "naive" measures of diversification based on the equal spreading of output across sectors. …

This paper empirically investigates the determinants of R&D diversification strategies in the drug industry. It … enriches the existing literature by proposing to look at diversification factors, which reflect market and technological …&D diversification is governed by the economies of scope as well as the escape competition motive. Moreover, it is found that competition …

this end we measure diversification for all German banks in the period from 1993 to 2002. As measures we use a broad set of … naive diversification across all industries or, alternatively, the economy's industry structure. With this framework our … in this context innovative group of distance measures. We find that different statistical measures of diversification may …

Should banks be diversified or focused? Does diversification indeed lead to enhanced performance and, therefore … banks? profitability (ROA) and their portfolio diversification across different industries, broader economic sectors and … performance benefits associated with diversification since each type of diversification tends to reduce the banks? returns …