… Evidence from 50,000 Extortion Payments in El Salvador, Professor María Micaela Sviatschi … PRFDHR Seminar: Market … Evidence from 50,000 Extortion Payments in El Salvador, Professor María Micaela Sviatschi How do gangs compete for … led to a large reduction in competition and violence, they find that it increased extortion rates by 15% to 20%. Much of …