regional concentration in the global food economy mark gehlhar 1 presented at first biennial conference of system research group june 27 2003 madison wisconsin is a senior economist market and trade division ers usda abstract manufacturing industry comprised diverse firms varying their geographic coverage product portfolios while largest have wide many concentrate on few categories or markets there are variations four firm ratio across regions aggregate level specific addition varies countries within same region sales packaged highest latin america australasia lowest asia pacific eastern europe 2 introduction large growing companies prominent feature landscape some predict that near future will be five retail about twenty manufacturers operating globally grievink josten valk 2002 industries evolved into with transnational dimension where leading an
