This paper describes sovereign credit ratings in emerging markets both for a specific year and over time, using quantitative explanatory variables. It turns out that rating adjustments have been worse than what economic fundamentals justify for some countries and also more frequently altered,...

This paper describes sovereign credit ratings in emerging markets both for a specific year and over time, using quantitative explanatory variables. It turns out that rating adjustments have been worse than what economic fundamentals justify for some countries and also more frequently altered,...

This chapter surveys recent econometric methodologies for inference in large dimensional conditional factor models in finance. Changes in the business cycle and asset characteristics induce time variation in factor loadings and risk premia to be accounted for. The growing trend in the use of...