Areal, Francisco J; Balcombe, Kelvin; Rapsomanikis, George - Volkswirtschaftliche Fakultät, … - 2013
; Gutierrez, forthcoming). Previous analysis on agriculture commodities by Gilbert (2009) and Gutierrez (forthcoming) applied the … tests developed by Phillips, Wu and Yu (2011) and focused on four agricultural commodities. In contrast, we apply the more … agricultural commodities between 1980-2012. We found price bubbles occurred for some commodities within food markets. …