The increasing crypto-stock comovement has spurred concerns over digital assets’ ripple effects and systemic risks. We closely examine this comovement and report two findings. First, the crypto-stock correlation hovered around zero before March 2020 but increased strikingly after. This shift...

This paper studies whether and how the central bank should prick asset price bubbles, if the effect of interest rate policy on bubbles can significantly vary across periods. For this purpose, I first construct a financial accelerator model with an agent-based financial market that can...

We consider optimal monetary policy in a model that integrates credit frictions in the standard New Keynesian model with sticky prices and wages as well as adjustment costs of capital. Different from traditional models with credit frictions such as Carlstrom and Fuerst (1998), the model is able...

This paper shows that monetary policy decisions have a significant effect on investor sentiment. The effect of monetary news on sentiment depends on market conditions (bull versus bear market). We also find that monetary policy actions in bear market periods have a larger effect on stocks that...

We use a predictable change in the intraday volatility of index futures to identify the effect of stock returns on monetary policy. This identification approach relies on a weaker set of assumptions than required under identification through heteroskedasticity based on lower frequency data. Our...

Most studies of the effect of monetary policy on asset prices use the event study methodology with daily data. The resulting estimates suffer from bias due to omitted variables and endogeneity of policy decisions. We provide evidence that this bias becomes so large during the 2007-2008 financial...

Ever since the Great Recession, central banks have supplemented their traditional policy tool of setting the short-term interest rate with massive buyouts of assets to extend lines of credit and jolt flagging demand. As with many new policies, there have been a range of reactions from...

Economic assets can be classified into two broad categories: those earning an inherent return and those earning a fiat money return. This article shows that both are valued according to the same general principle based on GDP (a constant equal to expected long term real per capita GDP growth)...

An asset bubble relaxes collateral constraints and increases borrowing by credit-constrained agents. At the same time, as the bubble deflates when constraints start binding, it amplifies downturns. We show analytically and quantitatively that the macroprudential policy should optimally respond...

This paper reexamines the main arguments of whether or not monetary policy should respond to asset bubbles. The question of how the central bank should respond to an asset bubble can be reformulated in two ways. First, how does the central bank respond while an asset bubble is growing, and...