Futures

Paul Krugman explains how corruption in the futures market ends up destroying its risk reducing benefits.

First, ask yourself what purpose is served by the oil futures market. Unlike the prediction markets Polymarket and Kalshi, the oil futures market is not intended to be mainly a vehicle for gambling. Instead, it is a market that serves to reduce risk through hedging.

Here’s how it works. There are people and institutions, such as oil producers, who will need to sell oil at a future date. They want to lock in the price today on those future sales. There are also people and institutions, such as airlines, who have a future need for oil and would like to lock in the price today. Thus the futures market lets both sellers and buyers of oil eliminate a major source of risk – fluctuations in the price of oil. This reduces uncertainty in the economy as a whole.

But what if there are substantial players in the futures market with inside information? Then if you are, say, a corporation trying to lock in the price of oil you plan to buy next month, you may not be making a mutually beneficial deal with future sellers. You may, instead, be being played for a sucker — paying what in retrospect will have been an excessive price — by people who know what’s about to appear in the president’s social media feed.

The same could apply to sellers of oil futures, although the examples of insider trading we know about involved Trump insiders getting ahead of falling, not rising, prices.

Either way, the effect of traders’ suspicion that they may be losers in a rigged game will be to make them reluctant to play at all — reluctant either to buy or to sell oil futures. And this will mean losing the risk-reducing benefits of a properly functioning futures market.