Traditional methods of calculating the value of Pi are approximate. This article demonstrates that there is an accurate method for calculating its value to 16 significant digits based on the performance of a computer program in Turbo C 2.0 including formulas resulting from the combination of...

This paper introduces peer value-added, a new approach to quantify the total contribution of an individual peer to student performance. Peer value-added captures social spillovers irrespective of whether they are generated by observable or unobservable peer characteristics. Using data with...

We examine the effects of incorporating a potential tax on carbon emissions into a value investment strategy. We show that in a portfolio optimization problem, a carbon tax at the stock level is mathematically equivalent to a carbon constraint at the portfolio level. Using this insight we derive...