Will Obamacare trim jobs?

Many businesses plan to bring on more part-time workers next year, trim the hours of full-timers or curtail hiring because of the new health care law, human resource firms say.

Their actions could further dampen job growth, which already is threatened by possible federal budget cutbacks resulting from the tax increases and spending cuts known as the fiscal cliff. "It will have a negative impact on job creation" in 2013, says Mark Zandi, chief economist of Moody's Analytics.

Under the Affordable Care Act, businesses that employ at least 50 full-time workers - or the equivalent, including ...