We propose an approach to identify economic shocks (monetary, growth, and risk premium news) from stock returns and Treasury yield changes, which allows us to study the drivers of asset prices at a daily frequency since the early 1980s. We apply the identification to examine investors’ responses to news from the Fed and key macro announcements. We uncover two risk premium shocks—time-varying compensation for discount rate and cash flow news—which have distinct effects on stocks and bonds. Since the mid-1990s, the Fed-induced reductions in both risk premium sources have generated high average stock returns but an ambiguous response in bonds on FOMC days.

We consider a financial network where banks are heterogeneous in scale and each bank has only local knowledge regarding the network. Each bank must make counterparty and portfolio decisions while anticipating uncertainty regarding the network structure. Such network uncertainty is an important consideration in banks’ risk management practice, which aims to minimize the effect of exogenous liquidity shocks and hedge against possible fire-sale in asset markets. We show that network uncertainty gives rise to an endogenous core-periphery structure which is optimal in mitigating financial contagion yet concentrates systemic risk at the core of big banks.