The Lewis Model, developed by economist W. Arthur Lewis in the 1950s, explains economic development in low-income countries. It describes a dual-sector economy consisting of a traditional agricultural sector and a modern industrial sector. The model suggests that labor can be transferred from agriculture to industry, leading to increased productivity and economic growth. As labor moves to the industrial sector, it helps to create jobs and raise wages, which can further stimulate demand for goods and services. The Lewis Model emphasizes the importance of this transition for achieving sustainable economic development and improving living standards in developing nations.