Monday, September 03, 2007
The Causal Effect of Studying on Academic Performance
A new NBER paper by Stinebrickner and Stinebrickner, "The Causal Effect of Studying on Academic Performance", examines the causal effect of studying on grade performance using an Instrumental Variable estimator. Their approach takes advantage of a unique natural experiment - they have collected unique longitudinal data that provides detailed information about all aspects of this experiment. The results suggest that human capital accumulation is not predetermined at the time of college entrance.
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These authors also have another new NBER ppaer on "The Effect of Credit Constraints on the College Drop-Out Decision: A Direct Approach Using a New Panel Study"
http://www.nber.org/papers/w13340.pdf
"A serious difficulty in determining the importance of credit constraints in education arises because standard data sources do not provide a direct way of identifying which students are credit constrained. This has forced researchers to adopt a variety of indirect approaches. This paper differentiates itself from previous work by taking a direct approach for providing evidence about this issue which is made possible by unique longitudinal data that have been collected specifically for this type of purpose. Our results suggest that, while credit constraints likely play an important role in the drop-out decisions of some students, the large majority of attrition of students from low income families should be primarily attributed to reasons other than credit constraints".
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