Chapter 1. What is a digital platform. 1.1. Direct and indirect network effects 1.2. Transaction and non-transaction platforms 1.3. Single and multi-homing 1.4. Data 1.5. Pricing 1.6. Fast moving nature Chapter 2. Digital platforms in Mexico 2.1. E-commerce platforms in Mexico 2.2. Fintech in Mexico 2.3. Commercial transport apps in Mexico. Chapter 3. Competition challenges in digital platforms. 3.1. Market definition. 3.2. Market power 3.3. Mergers and Acquisitions 3.4. Unilateral conducts 3.5. Vertical restraints 3.6. Collusive conduct