A new model for time-varying spatial dependencies is introduced. It forms an extension to the popular spatial lag model and can be estimated conveniently by maximum likelihood. The spatial dependence parameter is assumed to follow a generalized autoregressive score (GAS) process. The theoretical...

We introduce SRISK to measure the systemic risk contribution of a financial firm. SRISK measures the capital shortfall of a firm conditional on a severe market decline, and is a function of its size, leverage and risk. We use the measure to study top US financial institutions in the recent...

This paper investigates whether rumours about Greek exit from the euro area have spilled over into other European countries' sovereign bond yields. Our empirical analysis is based on more than 64,000 daily news items on Grexit between December 2014 and October 2015. We build a Grexit intensity...