This innovative new text from Jeffrey Sachs and Xiokai Yang introduces students to development economics from the perspectives of inframarginal analysis and marginal analysis. The book demonstrates how the new-found emphasis on inframarginal analysis has influenced a shift back to an interest in Classical Economics from Neoclassical Economics. Inframarginal Analysis vs. Marginal Analysis is presented as a consistent theoretical framework throughout. Shows how the relationship of Inframarginal...