Originally posted by @mott-the-hoople
http://www.informationliberation.com/?id=58503

My hand says this is a garbage source popular among conservatard mouth-breathers.

Originally posted by @mott-the-hoople
http://www.informationliberation.com/?id=58503

Unemployment rates have been declining since 2010 and a natural result
of low unemployment is employers chasing employees. Of course wages
will go up as they try to keep staff. The mystery is why - with the tax breaks,
wages are not accelerating faster.

https://data.bls.gov/pdq/SurveyOutputServlet?request_action=wh&graph_name=LN_cpsbref3

Originally posted by @mott-the-hoople
http://www.informationliberation.com/?id=58503

From the Seattle Times article mentioned in your cite:

About 90 percent of Costco’s employees are paid hourly, and earn $22.50 an hour, on average,

https://www.seattletimes.com/business/retail/costco-employees-anticipate-benefits-news-with-quarterly-earnings-thursday/

So in a tight labor market Costco is increasing wages 1-2 per cent for its average worker. Of course, it likes the tax cut, so it's going to say that this small increase in wages is due to it, but it seems highly likely that economic conditions would have mandated some sort of pay raise irregardless of the tax cut.

Even at that, these wage increases will cost the company about $110-120 million a year while they are estimating tax savings at $300 million a year.