The demand analyses, in which Heckman models were
used due to sample selection bias, indicated that price
elasticity was -0.53 for potatoes, -0.49 for peas, -0.28 for
green beans, -0.80 for strawberries and -0.69 for
cherries. The price elasticities, which were validated by
the results of previous studies, fell into the category of
low flexible, as expected. Accordingly, an increase in
prices of these products would result in proportionally
less decrease in their demand.