Retail industry

The retail industry comprises retail businesses that sell goods and services directly to end consumers. It is a fundamental pillar of modern commerce, influencing consumption patterns, urban infrastructure, and labor markets. In major classification systems, retail is treated as a distinct set of activities. Over millennia, retail has evolved from ancient barter marketplaces to modern omnichannel systems integrating physical stores and digital platforms. Retail is a large source of jobs and economic activity in many countries. In the United States, retail is described as the largest private-sector employer. This sector employed about 16.2 million people (approximately 12.6 % of nonfarm business employment) in 2022, supporting millions more in related logistics and services. The retail market is also described as very large globally, with projected worldwide retail sales of about $31.3 trillion in 2025, and U.S. retail sales of about $7.26 trillion in 2024. U.S. retail and food services together contribute over $5.3 trillion annually to the national GDP and support more than one in four jobs in the country.

The industry is commonly segmented by merchandise category (such as grocery, apparel, and electronics) and is organized differently across classification systems. Over recent decades, consolidation through mergers and acquisitions has been described as a major structural trend, alongside the rise of large multinational retailers and major e-commerce platforms. Retail formats and infrastructure have changed substantially over time, including the spread of self-service stores, shopping malls, barcode scanning and point-of-sale systems, and the expansion of e-commerce. Retail profit margins tend to be slim and vary widely by sector and geography, but many leading retailers generate substantial profits due to scale, control of supply chains, and operational efficiency.Publicly listed retailers often achieve profit margins in the low single-digit to mid-single-digit range.

Retail industry has had many innovations; from the invention of permanent shopfronts and marketplaces to department stores, malls, and now digital commerce. In the 2010s and early 2020s, retailers increasingly adopted omnichannel models, and some stores experimented with automation and cashierless checkout. During the COVID-19 pandemic, online sales growth accelerated sharply in some markets, including a reported surge in U.S. e-commerce sales in 2020.