The largest consumer market in 2015 was...

The United States of America was the largest consumer market in 2015 due to several factors. Firstly, it had a large population of over 320 million people, which provided a significant consumer base. Additionally, the country boasted a high level of economic development and a strong purchasing power, enabling its citizens to spend on a wide range of goods and services. The United States also had a diverse economy with various industries, such as technology, finance, and entertainment, contributing to its consumer market size. Moreover, the culture of consumerism and the availability of credit further fueled the demand for products, making the USA the largest consumer market in 2015.