This volume includes papers on topics related to efficiency issues in US and European equity and options markets, as well as the productive efficiency of various types of depository financial institutions. In the capital market context, the book highlights the provisions of efficient trading services in the capital markets and the role of market size, concentration, quality, governance and automation of trading. In the banking perspectives, the volume presents topics related to market integration, dynamic models of bank production, regulatory closure rules for banking firms, risk based insurance premiums in banking, and the economics of the research and development in private firms.