The document summarizes David Alexander's research on enhancing resilience after disasters in the Philippines, Japan, and Mexico. It discusses the impacts of Typhoon Haiyan in the Philippines in 2013, the 2011 Tohoku earthquake and tsunami in Japan, and landslides in Mexico. Key findings include that simple existing knowledge was not utilized to protect survivors, transitional shelter was poorly constructed, and opportunities to reduce poverty were missed. The document also analyzes approaches to disaster risk reduction, reconstruction, and the role of organizational, social, and political systems in influencing vulnerability to natural hazards.