The wage trends also could help rebut the growing belief that the economy won't be able to sustain the growth it saw in 2018.
"Taken together, our findings suggest a relatively optimistic consumption outlook given solid income growth across income levels," Choi wrote. "Even if employment growth slows as labor supply constraints start to bind, this should be partially offset by the continued firming of wages, particularly among lower income workers with higher marginal propensities to consume."
One danger is that higher wages could start to eat into corporate profits, which have doubled since the financial crisis.
However, it could take years for that to be a significant factor, according to an analysis by AB Bernstein.
"While pressure on capital share is likely to remain, that doesn't mean that profits are going to fall – in fact profits can lose share at a rate up to about 100bps per year [1 percentage point] and still expect to have positive profit growth," Philipp Carlsson-Szlezak, chief U.S. economist at AB Bernstein, said in a note. "In other words, overall expansion of net value add can be strong enough to protect profit growth even in the face of a rising labor share."
Carlsson-Szlezak said wage pressures more likely would be felt at a sector level in industries where labor takes a bigger share of output. For example, information technology and extraction likely would feel the least effects, while hospitality and retail would be hit hardest.