Seattle's $15-an-hour minimum wage law has cost the city jobs, according to a study released Monday that contradicted another new study published last week.

A University of Washington team studying the law's effects found that the law has boosted pay in low-wage jobs since it took effect in 2015, but that it also caused a 9 percent reduction in hours worked, The Seattle Times reported ( https://goo.gl/G1Vr64 ). For an average low-wage Seattle worker, that's a loss of about $125 per month, the study said.

"If you're a low-skilled worker with one of those jobs, $125 a month is a sizable amount of money," said Mark Long, one of the authors. "It can be the difference between being able to pay your rent and not being able to pay your rent."

There would be about 5,000 more low-wage jobs in the city without the law, the study estimated.

Seattle was one of the first U.S. cities to adopt a $15 minimum wage law, and its experience is being closely watched as other cities have followed suit and as advocates push for a higher federal minimum wage.

The city's law is raising the minimum to $15 for all businesses by 2021.

In the years covered by the study, 2015 and 2016, the minimum wage was at most $13, depending on business size, worker benefits and tips. The current minimum wage in Seattle ranges from $11 to $15, and unemployment is at a historically low 2.6 percent, thanks in part to the booming tech sector. Seattle has added about 40,000 jobs overall in the last few years.

Last week, a review by University of California at Berkeley economists found the law raised pay without hurting jobs in the restaurant industry. An author 

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