With Ebola inducing fears about West Africa's cocoa supply, truffle maker Santi Falcone is paying agribusiness giant Cargill more than he ever has for chocolate. And because he just signed a one-year contract, the pinch Falcone is feeling won't let…

Days before Halloween, the price of cocoa, and therefore chocolate bars, is up. But Ebola isn't actually threatening the cocoa supply in West Africa, says commodities trader David Martin. Instead, the market is reacting to human fears, and for traders…