New York (CNN Business) America's top retailers are trying to outmatch each other with new employee benefits to attract workers as unemployment hovers near its lowest level in decades.

On Monday, Target announced it will strengthen its child care benefits and expand paid family leave for 350,000 part-time and full-time hourly employees across stores, distribution centers and headquarters.

Employee turnover is disruptive for retailers, which are locked in a tight battle to squeeze out sales in stores and online. So companies are stepping up pay and perks to keep existing workers and attract new ones.

Target TGT Costco COST Amazon AMZN Walmart WMT has raised its starting wage to $13 an hour and also pledged to take it up to $15 an hour by the end of 2020.andhave also moved to $15 an hour raised its minimum wage to $11 an hour last year, and CEO Doug McMillion hinted last week that Walmart will raise its minimum wage "floor" in the future. The average wage of a full time, hourly worker at Walmart is $14.26, according to the company.

"We've taken a strong position on minimum starting wages, but that's just one facet," Melissa Kremer, Target's chief HR officer, said in prepared remarks.

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