This document provides an executive summary of the 2015 edition of the report "Rich States, Poor States" by Arthur Laffer, Stephen Moore, and Jonathan Williams. The report analyzes state economic policies and provides the 2015 ALEC-Laffer State Economic Competitiveness Index, which ranks states based on past economic performance and future economic outlook. Some of the best practices identified for states include lowering taxes, reducing regulations, and controlling spending and debt. The report also discusses important state policy developments since the previous edition and warns against the pitfalls of "tax cronyism." Chapters analyze specific state policy issues and economic reforms in Kansas in more depth. The state rankings aim to identify which state policies have led to greater economic opportunity