Mechanical Refrigeration and the Integration of Perishable Commodity Markets

Asymmetric price transmission in the Spanish lamb sector

“…14 Following Doran and Quilkey (1972) and Goodwin et al (2002), the seasonal component (S t ) of each series has been captureed by estimating the following regression:…”

Local polynomial fitting and spatial price relationships: price transmission in EU pork markets

“…The transaction cost band for the Germany-Spain model is unexpectedly small. This could be explained by a less intensive commercial flow between Germany and Spain relative to the trade between Denmark and Germany, which may reduce the adequacy of the interpretation of the thresholds as transaction costs band (Goodwin, Grennes and Craig, 2002).…”

Integration in the English Wheat Market 1770-1820

“…So research based on annual data (Sharp and Weisdorf, 2013;Studer, 2008), is not comparable to research using monthly data (Bateman, 2011;Buyst, Dercon and Van Campenhout, 2006;Goodwin and Grennes, 1998;Goodwin, Grennes and Craig, 2002;Jacks, 2005;Marks, 2010;Trenkler and Wolf, 2005), which is not comparable to research using data with two observations per month (Ejrnaes and Persson, 2000), which is not comparable to research using weekly data (Ejrnaes and Persson, 2010;Federico, 2007;Hynes, Jacks and O'Rourke, 2012). One possible solution to this would be for authors to report half lives based on both their underlying data and also from the same data sampled at a lower frequency, although the latter would only be an imperfect measure for comparison purposes.…”

“…Trenkler and Wolf (2005) estimate a VAR with more lags, but then re-estimate the model with just one lag to get a half life. Goodwin and Grennes (1998) and Goodwin, Grennes and Craig (2002) and Ejrnaes, Persson and Rich (2006) illustrate the effects of shocks on different markets on the full set of prices but do not provide a measure of the speed of convergence.…”