The 13th annual wealth creation study analyzes the wealth generated by companies from 2003 to 2008, highlighting key findings on the concept and methodology of wealth creation. It identifies the top wealth creators, fastest wealth creators, and consistent performers, while also discussing the market outlook for 2009 using the themes of 'great, good, gruesome' to differentiate company performance. Furthermore, it emphasizes the importance of valuation parameters and earnings growth in wealth creation across various industries.