Final answer:
The precise research methods of Vishal P. Singh on Wal-Mart's impact on local food centers are not detailed, but likely includes economic data analysis and case studies similar to the work by Goetz and Swaminathan. They would explore the consequences of large chains on local economies, consumer preferences, and the existence of small businesses without economic profits.
Step-by-step explanation:
The student is asking about the methodologies used by Vishal P. Singh and his colleagues in conducting research on the impact of Wal-Mart on local food centers. Although the exact details of Vishal P. Singh's research methods are not provided, we can infer from related literature such as the study by Goetz and Swaminathan that in-depth research on such topics typically involves the analysis of economic data, case studies, and surveys to assess the effect of large retail chains on local businesses and economies. Studies might look into factors like employment, local business closures, economic profits, and circulation of money within the local economy. Furthermore, the paper could include discussions regarding the phenomenon of 'Wal-Martization', which addresses the broader implications of Wal-Mart's business model on wages, benefits, and local economiesAnother aspect of consumer behavior research might involve exploring personal shopping preferences, such as choosing between large chains or smaller retailers for various services. This part of the research may utilize surveys or interviews to understand consumer decision-making and the cultural or societal factors that influence these choices. Critical thinking questions related to 'Mom and Pop firms' could facilitate understanding the non-economic benefits that sustain such businesses despite the absence of substantial financial profits.