It does so by snapping up rivals, adopting their new drugs, while slashing payrolls and research budgets.
But some economists noted that the volatile nature of the payrolls data meant markets should not read too much into March's report.
The change would also simplify payrolls and encourage employers to offer apprenticeships.
Bloated public payrolls, stupid subsidies for uncompetitive industries, underinvestment in science, technology and education, corruption, tax exemption for the professional classes etc – you can't afford that kind of laissez-faire unless you periodically devaluate your currency.
The key non-farm payrolls report showed 126,000 jobs were added in March, almost half the number economists had been predicting and the slowest job creation since December 2013.
Total US payrolls reached 138.5m in May, surpassing the country's previous peak level of employment set in January 2008.
According to the establishment survey, non-farm payrolls were up 200,000 this month, similar to the estimates from the household survey (some months they can be very different).
"With these factors having dissipated, we expect the hard data to bounce back in the next few months and the payrolls figures to also recover.
And even with a really good payrolls figure for May, the June rate hike option now looks dead and buried".
Many countries may have hoped to get through 2010 without withdrawing that support but markets could force them into action, by pressuring either their bonds or their currencies.The immediate aftermath of the payrolls data may have offered a brief glimpse of that future.
Demographic trends suggest that to keep up with the long-term underlying growth in the labour force, payrolls need only grow 50,000 to 60,000 per month, Morgan Stanley reckons.
