McDonald's and Coca Cola reveal the "K-shaped" consumption situation in the United States: low-income customers are cutting back on expenses. During a earnings conference call on Tuesday, executives from these listed catering giants explicitly told analysts that currently in the United States, facing the impact of sustained inflation, low-income groups have reduced their consumption of hamburgers, fries, and carbonated soda. At the same time, the middle and high-income population continues to maintain a consumption resilience that also surprises the Federal Reserve.