We examine relationships between firms and their investment banks (IBs), both within and across different IB functions. For all transaction types, we find an increase in the number of relationships and a decrease in relationship exclusivity over time. We identify significant transaction-type...

We examine the impact of the Global Settlement on affiliation bias in analyst recommendations. Using a broad measure of investment bank-firm relationships, we find a substantial reduction in analyst affiliation bias following the settlement for sanctioned banks. In contrast, we find strong...

We present CoMargin, a new methodology to estimate collateral requirements for central counterparties (CCPs) in derivatives markets. CoMargin depends on both the tail risk of a given market participant and its interdependence with other participants. Our approach internalizes market...

We present CoMargin, a new methodology to estimate collateral requirements in derivatives central counterparties (CCPs). CoMargin depends on both the tail risk of a given market participant and its interdependence with other participants. Our approach internalizes trading externalities and...

1.Sovereign Wealth Funds: An Overview -- 2. The Evolution of Sovereign Wealth Funds: A Bibliometric Analysis -- 3. Sovereign Wealth Funds and the Local and World Economy: Are They Good or Bad Investment Actors? -- 4. Standards for Sovereign Wealth Funds: The Santiago Principles and Beyond --...

We analyze data from 2005 through 2009 that uniquely identify categories of traders to assess how speculators such as hedge funds and swap dealers relate to volatility and price changes. Examining various subperiods where price trends are strong, we find little evidence that speculators...