This article has two main purposes: to report a case study of an evaluation of a junior high math innovation that matched teachingstyleswithstudents'learningstyles, and to discuss illuminative evaluation as a methodology for formative evaluation.

A number of previous studies (Barro and Sala-i-Martin, Grier) have attempted to gauge the differential impact of regressors such as human capital and investment on the performance of fast and slow growing economies. To date, most such studies impose a single marginal impact on all countries for...

A number of papers have investigated the increasing macroeconomic ties between Mexico and the USA. These studies have relied on linear models, however, making their results suspect. Other papers have investigated nonlinearity over the Mexican business cycle, but have not studied the links...