- In column (1) moderate and strong negative shocks are pooled into a single dummy variable, while in column (2), they enter separately. Column (3) only considers strong negative shocks. Robust standard errors in (). The coefficients denote unweighted average marginal effects. ***,** and * indicate significance at the 1%, 5% and 10% level, respectively. Base category is trade, 1–4 employees, in 2008–2009, mainly foreign ownership, single-establishment