Online sales in China could generate $650 billion by 2020. And it’s not only Web-savvy urbanites embracing e-commerce, but also residents of China’s smaller cities and rural areas. Rapid sales of low-cost, high-functionality smartphones have helped to expand Internet access quickly across China. Consumers in remote areas not served by large shopping malls are increasingly going online, often with their smartphones, to find the products they want. Residents of smaller cities spend a greate...