“…For our purposes the empirical literature can be classified according to whether climate variables were included incidental to the main purpose of the study (Roback 1982, Hoehn et al 1987, Clark and Cosgrove 1990, Albouy and Leibovici, 2009 or whether climate was the main focus in which case we can further distinguish between studies undertaken in the US (Hoch and Drake 1974, Englin 1996, Nordhaus 1996, Mendelsohn 2001, Albouy 2008, Kahn 2008 and those undertaken elsewhere (Maddison and Bigano 2003, Srinivasan and Stewart 2004, Mueller and Sheriff 2007, Cavailhes et al 2008, Rehdanz and Maddison 2009. 4 A final distinction is that some studies look for compensating differentials for climate in either the housing market (Englin 1996) or the labour market (Hoch and Drake 1974) whereas theory indicates that they can simultaneously appear in both.…”