Key TakeawaysMcDonald's reported first-quarter earnings that missed estimates as its results were hurt by the effects of inflation on consumers and continuing boycotts in the Middle East.CEO Chris Kempczinski said consumers were watching their spending because of high prices.McDonald's shares hit an all-time high in January, but they’ve stumbled since, losing close to 8% year to date. McDonald’s (MCD) reported first-quarter earnings that missed estimates as its results were hurt by the effects of inflation ...