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...

Discouraged workers are those who have given up search due to (perceived) low chances of obtaining work. In this paper we first develop a model for the probability of being in the labor force as a function of the probability of getting an acceptable job offer. This model is based on standard...