Death tolls spur pro-war stance, study finds

Mounting casualities in America’s nearly 10-year-old wars in Iraq and Afghanistan might seem to serve as a catalyst for people to denounce the war and demand a way out. But a Washington University in St. Louis study into the psychology of “sunk-costs” finds that highlighting casualties before asking for opinions on these wars actually sways people toward a more pro-war attitude. This sunk-cost mindset may also expain why losers stay in the stock market.