I have recently finished reading Famine and Finance by Tyler Beck Goodspeed. While short, it should have a prominent place on the shelves of economic historians interested (obviously) in Irish history and (less obviously) in Malthusian theory.
Famine and Finance is a study of the response of Irish farmers to the potato blight. As it is known to many, many individuals simply left Ireland. However, where micro-credit was available, Goodspeed finds that farmers adapted by shifting to different types of activities – notably livestock. These areas experienced a smaller decline in population. Basically, where the institution of micro-credit was present, the demographic shock was much less severe. If only for this nuance, the book makes a sizeable contribution to the historiography of Ireland. The methods used are also elegantly simple and provide an interesting road map for anyone interested in studying the responses of local population to environmental shocks.
However, the deeper point comes from it tells us about institutions. In Goodspeed’s story, the amplitude of the collapse of the Irish population in the 19th century depends on the presence of the institution of micro-credit. Basically, the institution determined the amplitude of the shock. Since Ireland’s potato blight is often presented as the textbook case of Malthusian pressures, Goodspeed’s results are particularly interesting. In his chatper titled”Was Malthus Right?”, he shows that when controls for the institution of micro-credit is present, the typical Malthusian variables fail to explain population changes. In other words (i.e. my words) , Malthusian pressures (the change in population) are in fact institutional failures.