"German retailer Schwarz is mulling the launch of its Kaufland and Lidl hypermarkets in the Ukraine."
for some economic studies on this:
"Consumers often benefit from increased competition in differentiated product settings. In this paper we consider consumer benefits from increased competition in a differentiated product setting: the spread of non-traditional retail outlets. In this paper we estimate consumer benefits from supercenter entry and expansion into markets for food. We estimate a discrete choice model for household shopping choice of supercenters and traditional outlets for food. We have panel data for households so we can follow their shopping patterns over time and allow for a fixed effect in their shopping behavior. We find the benefits to be substantial, both in terms of food expenditure and in terms of overall consumer expenditure. Low income households benefit the most."
and
"This paper uses a case study approach to explore the effects of NAFTA and GATT membership on innovation and trade in the Mexican soaps, detergents and surfactants (SDS) industry. Several basic findings emerge. First, the most fundamental effect of NAFTA and the GATT on the SDS industry was to help induce Wal-Mart to enter Mexico. Once there, Walmex fundamentally changed the retail sector, forcing SDS firms to cut their profit margins and/or innovate. Those unable to respond to this new environment tended to lose market share and, in some cases, disappear altogether. Second, partly in response to Walmex, many Mexican producers logged impressive efficiency gains during the previous decade. "
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