The interaction effect of auditor industry specialization and ownership concentration on investment efficiency : evidence from Egyptian stock exchange

الملخص EN

The paper examines the interaction effect of auditor industry specialization and ownership concentration on investment efficiency for a sample of firms listed on the Egyptian Stock Exchange during the period from 2011 through 2018.

I predict that specialized auditors and ownership concentration have positive impact on investment efficiency.

It's further predicted that specialized auditors moderate the relation between ownership concentration and investment efficiency.

Results reveal that specialized auditors enhance investment efficiency, while ownership concentration adversely affects investment efficiency.

Results fail to support any interaction effect between auditor industry specialization and ownership concentration.