ABSTRACT. Baum et al. show that firm-specific and macroeconomic uncertainty along with their interaction have a significant effect on investment even in the presence of Q, cash flow and the debt-to-capital ratio. Almeida and Carneiro emphasize that the study of firm investments in physical capital is much more developed than the study of firm investments in human capital. Fuss and Vermeulen investigate whether developing a single bank relationship helps firms to circumvent exceptional liquidity shortages.