The largest increase in consumer spending since gas prices have dropped, according to Markowska, has been on healthcare. "In nominal terms, household spending on healthcare averaged 3.9% between 2010 and 2013," wrote Markowska in a note to clients Thursday. "It began to accelerate in the first half of 2014 and has averaged at 5.2% since then. Importantly, this pickup in healthcare spending was not driven by higher costs; real spending in this category accelerated from 1.9% in 2010-2013 to 3.9% thereafter." This would indicate that Americans have been not only been spending more because of increased costs, but also intentionally...