after tax profit margin calculator The optimal combination of benefits and risks is the best combination of benefits and risks. If the benefit is certain, the risk is minimized; What happens next? Opportunities in 2018 In 1937, American economist Robert coase (R. H. Coase's publication of the essence of the enterprise is considered to be the beginning of a discussion on this issue. Abn amro believes that after a strong 2017, precious metals will face many headwinds at the start of 2018. The bank said rising dollar and bond yields would put downward pressure on gold and silver prices in 2018. Gold is expected to trade between $1,200 / $1,250 an ounce next year.