This chapter reviews literature related to factors that affect student performance in public and private schools. Several studies from various countries, including Pakistan, have used statistical techniques like OLS regression, decomposition analysis, and logit models to assess the effectiveness of different factors on student achievement. Commonly, private schools are found to have higher quality facilities and educated teachers compared to public schools. However, private schools lack trained and experienced teachers. Studies also show that factors like family background, income level, parental education, student-teacher ratio, and school facilities significantly impact student performance. Competition from private schools can positively impact productivity in public schools.