The magnitude of the national income of a country depends on all the following except the

The national income of a country is a measure of the total value of goods and services produced by the country in a given period of time. The magnitude of the national income of a country depends on several factors such as the quantity of natural resources available, the level of technical know-how, the mobility of labor, the level of productivity, and the quality and quantity of factors of production. However, the one factor that does not affect the magnitude of national income is the mobility of labor. While labor mobility can affect the efficiency of production and distribution of goods and services, it does not directly impact the total value of goods and services produced by a country.