What Matters for Second Job Pay in Higher Education in Northern Pakistan?

There are studies on moonlighting, but literature is scarce on moonlighting wages and its determinants. To know the factors that influence the secondary job payments for higher education, this study selected a sample from all the public sector universities in Khyber Pakhtunkhwa, Pakistan in multi-stages with a total of 656 teachers. The independent variables consisted of the wage rate in the primary job, the income from all other sources, education level, job grade, supply of labour to the secondary market, experience, and the motives behind moonlighting. Outcomes of regression show that an hour increase in the supply of labour to the second job decreases the wage rate by nearly 15 rupees. The only motive for enjoying a second job is receiving a significantly high per-hour wage and this motive weakens the decreasing effect of increased supply to moonlighting jobs when estimated as the interaction between the two variables. Although a professor gets an 88-rupee higher wage than a non-professor, an increase in his supply of labour has a payment of 56 rupees in interaction effect. However, he gets a great amount if he increases his supply of labour because he enjoys the second job. In the case of education, positing only a master's degree results in a lesser wage than a higher degree. The results give useful insights into the higher education secondary market and wage determination.