Measuring the option value of education
Stellenbosch Working Paper Series No. WP15/2013Publication date: 2013
Author(s):
[protected email address] (Centre for Studies of African Economics, University of Oxford)
Many recent descriptive studies find convex schooling-earnings profiles in developing countries. In these countries forward-looking students should attach option values to completing lower levels of schooling. Another option value may arise due to the uncertain economic environment in which the sequence of enrolment decisions is made. Most theoretical models that are used to motivate and interpret OLS or IV estimates of the returns to schooling assume away convexity in the schooling-earnings profile, uncertainty and the inherently dynamic nature of schooling investment decisions. This paper develops a decomposition technique that calculates the relative importance of different benefits of completing additional schooling years, including the option values associated with convex schooling returns and uncertainty. These components are then estimated on a sample of workers who has revealed a highly convex schooling-earnings profile, and who face considerable uncertainty regarding future wage offers: young black South African men. We find that rationalising the observed school enrolment decisions requires large option values of early schooling levels (mainly associated with convexity rather than uncertainty), as well as a schooling cost function that increases steeply between schooling phases.
JEL Classification:C31, J24, J31
Keywords:Earnings Regressions, Returns to Schooling, Dynamic programming
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Upcoming Seminars
Monday 21 July 202512:00-13:00
Izak Odendaal: Old Mutual Wealth Chief Investment Strategist
Topic: "Diverging fiscal policies and what it means for markets"
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Prof Willem Boshoff: Stellenbosch University
Topic: "Two competing approaches in South African competition policy: merger control and anti-cartel enforcement over the past 30 years"
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27 Jun 2025 Another setback for the GNU, but oil markets breathe a little easierThis week was marked by heightened tensions both domestically and internationally. At home, friction intensified between the two largest parties in the Government of National Unity (GNU), the ANC and the DA, following the firing of one of the DA's deputy ministers. Internationally, the US conducted airstrikes on three Iranian nuclear facilities using...
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