This document discusses Walmart's history and expansion. It notes that Sam Walton started the first Walmart store in 1950 in Arkansas. By 1962 there were 11 stores, and the company was incorporated as Walmart Stores Inc. in 1967. As of 2009, Walmart owned 8,400 stores globally and had over 2.1 million employees, generating nearly $540 billion in annual sales. The document then examines various economic theories and factors relevant to Walmart expanding operations into Pakistan, such as cultural acceptance of brands and a growing middle class.