IPSOS – Consumers Sacrifice New Products and Usual Brands During Economic Downturn – https://www.ipsos.com/en-us/consumers-sacrifice-new-products-and-usual-brands-during-economic-downturn
Betsy Bohlen, Steve Carlotti, and Liz Mihas – How the recession has changed US consumer behavior – https://www.mckinsey.com/industries/consumer-packaged-goods/our-insights/how-the-recession-has-changed-us-consumer-behavior