The paper focuses on the delineation of geographic markets in competition analysis, investigating the use of tests of price co-movement in the market definition exercise. To this end, the first part is devoted to a conceptual framework for market definition (adopted from <link rid="b11">Haldrup (2003</link>))....

The study seeks to re-investigate the role of price, income and health awareness in the evolution of South African cigarette demand over the period 1996 to 2006. At first glance, rising cigarette prices appear to have played an important role in reducing cigarette consumption over the sample...