“…In the working paper versionChaney, Sraer, and Thesmar (2009), we develop a simple model of investment under collateral constraint to justify this specification.18 Formally, if the estimated coefficient ˆ β is positive after controlling for the market value of a firm, we can reject the assumption that firms do not face any financing constraint, while if the estimated coefficient ˆ β is negative, we cannot reject this assumption.19 Using only the initial value of real estate in 1993 offers an additional advantage: if a firm discovers a profitable investment opportunity, and if it leases some of its real estate, we may expect that its landlord will try to extract as much rent as possible from this future investment; to escape from this hold-up problem, we may expect this firm to become owner of its real estate exactly when it is about to invest; in such a scenario, we would then see a spurious correlation between the current value of the real estate a firm owns and its investment. We circumvent this problem by using variations in the value of real estate that come only from market prices, and not from the contemporaneous strategy of the firm.…”