“…In fact, there is a vast literature in agricultural economics which finds a systematic negative correlation between soil quality and farm size (Bhalla and Roy, 1988;Bhalla, 1988;Benjamin, 1995). Regions which exhibit relatively poorer quality soil, therefore with a lower marginal value of land, experience a lower demand for land and are thus characterized by higher average farm sizes (Barrett et al, 2010;Bhalla and Roy, 1988;Bhalla, 1988). This is indeed the pattern that was followed by north-eastern European regions during the Middle Ages where the local lords, in order to attract more agricultural workers and encourage immigration, granted the peasants higher levels of freedom compared to the manorial system in the West (Rosenberg, 1943).…”