Table 2. Non-linear least square estimations.

Estimations of the exponents of Eq (3), where * means significant at 90%, ** at 95% and *** at 99% level, with in brackets the standard error. $R_{adj}^2$ is the adjusted coefficient of determination, and Obs. is the number of the importers directly hit by the trade shocks.

ΔFjk	wheat	soya	maize	rice
Const.	-1317	-0.0492	-0.038	-0.014
gdpk(t0)	- 0.137*** (0.036)	0.178 (0.390)	-0.658*** (0.059)	- 0.232*** (0.046)
Fjk(t0)	1.296*** (0.069)	1.012*** (0.07)	1.460*** (0.093)	1.111*** (0.058)
−ΔEj(t0, τ)	0.691*** (0.169)	1.389*** (0.300)	0.055 (0.217)	0.261** (0.127)
$R_{adj.}^2$	0.72	0.60	0.75	0.79
Obs.	266	164	191	261