We must infer what the future situation would be without our interference, and what changes will be wrought by our actions. Fortunately, or unfortunately, none of these processes is infallible, or indeed ever accurate and complete. Knight (1921)

We use data from the aggregate stock market and dividend futures to quantify how investors' expectations about economic growth evolve across horizons in response to the coronavirus outbreak and subsequent policy responses until June 2020. Dividend futures, which are claims to dividends on the...