The reuse of collateral can support the efficient allocation of assets in the financial system. Exploiting a novel dataset, we quantify banks' collateral reuse at the security level. We show that banks substantially increase their reuse of collateral in response to scarcity induced by central bank asset purchases. Repo rates are less sensitive to purchase-induced scarcity at low levels of reuse, when the banking system can easily supply collateral through reuse. Repo rates are more sensitive to scarcity and more volatile at high levels of reuse, highlighting the trade-off between the shock absorption and shock amplification effects of collateral reuse.

Yes, they would. In a randomized control trial, we provide groups of respondents from the Bundesbank Online Panel Households with information about a hypothetical alternative ECB monetary policy regime akin to the Federal Reserve's flexible average inflation targeting (AIT). Inflation expectations significantly increase for the treated individuals. When provided with additional assumptions about current inflation, individuals update their expected inflation path in line with the central banks' intentions. Individuals with a high trust in the ECB's ability to achieve price stability adjust their inflation expectations particularly strongly. We assess the economic significance of our findings by comparing two model economies under different monetary policy strategies, calibrated to match the difference in medium-term inflation expectations from our survey results. Inflation is substantially less volatile and the frequency of hitting the lower bound of interest rates considerably reduced under AIT.

We characterize the joint dynamics of a large number of macroeconomic variables and Treasury yields in a dynamic factor model. We use this framework to identify a yield curve news shock as an innovation that does not move yields contemporaneously but explains a maximum share of the forecast error variance of yields over the next year. This shock explains more than half, and along with contemporaneous shocks to the level and slope of the yield curve, essentially all of the variation of Treasury yields several years out. The news shock is associated with a sharp and persistent increase in implied stock and bond market volatility, falling stock prices, an uptick in term premiums, and a prolonged decline of real activity and inflation. The accommodative response by the Federal Reserve leads to persistently lower expected and actual short rates. Treasury yields do not react contemporaneously to the yield curve news shock as the positive response of term premiums and the negative response of expected short rates initially offset each other. Identified shocks to realized and implied financial market volatility imply essentially the same impulse responses and are highly correlated with the yield news shock, suggesting that they act as unspanned or hidden factors in the yield curve.

In September 2008, a six-year-old article about the 2002 bankruptcy of United Airlines' parent company resurfaced on the Internet and was mistakenly believed to be reporting a new bankruptcy filing by the company. This episode caused the company's stock price to drop by as much as 76 percent in just a few minutes, before NASDAQ halted trading. After the "news" had been identified as false, the stock price rebounded, but still ended the day 11.2 percent below the previous close. We explore this natural experiment by using a simple asset-pricing model to study the aftermath of this false news shock. We find that, after three trading sessions, the company's stock was still trading below the two-standard-deviation confidence band implied by the model and that it returned to within one standard deviation only during the sixth trading session. On the seventh day after the episode, the stock was trading at exactly the level predicted by the asset-pricing model. We also document that the false news shock had a persistent effect on the stock prices of other major airline companies. -- False news ; natural experiment ; United Airlines ; noise ; market efficiency.