why retail is an indicator of economic prosperity: retail jobs vs other industry

The UNITED STATES   have 3,793,621 retail establishments across the entire country.The below data from NRF showed on the form of a chart, shows where retail stands as compared to other industry in job creation in US

RETAIL INDUSTRY JOB CREATION AND ECONOMIC INDICATOR

Retail supports 1 in 4 American jobs

It’s not just about the jobs directly in retail. The industry supports nearly 5 million logistics jobs; 4 million management and administration jobs,. 2 million health care and service jobs; 2 million finance, insurance and real estate jobs; and 800,000 technology jobs.According to NRF economic prosperity and retail have a linear relationship