Labour supply refers to the amount of work that is available from workers in a given market or economy. It is determined by the number of workers in the labor force, as well as the number of hours that these workers are willing and able to work at different wage rates.
In other words, labour supply takes into account both the number of workers available to work and the amount of time that they are willing and able to dedicate to work at different wage rates. The labor supply curve represents the relationship between the wage rate and the quantity of labor that workers are willing to supply at that wage rate.
Factors that affect labor supply include demographic trends (such as population growth and aging), changes in technology, changes in the demand for goods and services, and government policies that affect the availability and cost of labor. Understanding labor supply is important for employers, policymakers, and economists because it helps to inform decisions about wages, working conditions, and labor market regulations.