Doyle states that "insurance rates have moved up quite a bit as you would expect." Marsh (MMC), Aon (AON), and Willis Towers Watson (WTW) are insurance *brokers*, not carriers. They earn commissions based on a percentage of the premiums written. When risk perception spikes and rates harden (go up), brokers earn higher revenue on the same volume of business without taking on the underwriting risk of the payouts (which falls on the carriers). Long Insurance Brokers. They benefit from the "poly crisis" volatility and inflation in premiums. If economic activity (transaction volume) collapses entirely due to the war, higher rates might not offset the loss of total deal flow.