Introduction PART I: SOLUTIONS THAT WORK 1. A World Of Opportunities 2. Social Entrepreneurs 3. Why 'Market Based'solutions? PART II: MARKET BASED SOLUTIONS FOR 4. Cooking 5. Affordable Housing 6. Lighting 7. Safe Drinking Water 8. Banking Services 9. Boosting The Profitability Of Micro-Entrepreneurs 10. Offering Fair Employment 11. When Markets Fail PART III: OBSTACLES TO SCALE 12. Where To Start...