When two or more nations engage in free trade how is the standard of living improved in the participating countries?

When two or more nations engage in free trade, the standard of living in the participating countries can improve through increased access to a wider variety of goods and services at lower prices. This competition encourages innovation and efficiency among producers, leading to higher quality products. Additionally, free trade can stimulate economic growth by creating jobs and boosting investment, ultimately resulting in higher incomes for individuals. Overall, these factors contribute to better living conditions and enhanced economic opportunities for the populace.