We examine the effect of economic policy uncertainty on the relation between investment and the cost of capital. Using the news-based index developed by Baker et al. (2016) for twenty-one countries, we find that the strength of the negative relation between investment and the cost of capital decreases during times of high economic policy uncertainty. An increase in policy uncertainty reduces the sensitivity of investment to the cost of capital most for firms operating in industries that depend strongly on government subsidies and government consumption as well as in countries with high state ownership. Consistent with the price informativeness channel, we find that an increase in policy uncertainty reduces the investment-cost of capital sensitivity for firms from more opaque countries, firms with low analyst coverage, firms with no credit rating, and small firms. We conclude that economic policy uncertainty distorts the fundamental relation between investment and the cost of capital.

Despite the growth of Islamic banks (IBs), little is known about their liquidity creation performance and financial stability consequences relative to conventional banks (CBs). We address these issues using data from 24 countries over 2000–2014. We find IBs create more liquidity per unit of assets than CBs, primarily on the asset side of the balance sheet. Results are economically significant, econometrically robust, hold in high- and low-income countries, and during the Global Financial Crisis and other times. In addition, CB liquidity creation results in reduced national financial stability, particularly in high-income countries, whereas IB liquidity creation does not.

This paper investigates the effects of national culture on bank liquidity creation. Using a sample that covers 66 countries over the 2001–2014 period, we find that individualism is associated with greater bank liquidity creation. This evidence lends more weight to the risk-taking and overconfidence bias explanations. We also find that the effect is stronger for larger banks. Moreover, individualism is associated with more (less) liquidity creation in developed (developing) countries, suggesting that social connections and better access to soft information are relevant explanations in developing countries. Additional analysis suggests that the other cultural dimensions of uncertainty avoidance and power distance are related to lower bank liquidity creation. The results remain robust for a battery of sensitivity checks, and for confronting endogeneity and omitted variables concerns.

We introduce this special issue on Economic Policy Uncertainty (EPU) with a focus on how EPU affects allocative efficiency. We observe that EPU affects the market value of firms in about 37% of Fama–French 30 industries, but leads to lower investments in 90% of them. Allocation decisions in a market economy rely on signals from the capital market, which EPU distorts. This may cause increasing conflicts of interest between managers and investors. We highlight key studies in the EPU literature and then describe each paper in this special issue. We also provide suggestions for future research.