Foreign firms hold trivial amounts of domestic financial assets (under 2%), and play only a marginal role in any domestic sector.

ECONOMIST: China's financial system

Growth of output in the manufacturing sector was only moderate, while a marginal rise in new orders offset the fall in new business reported by the service sector.

BBC: Scottish business going through soft patch, says survey

At its core it pledges the notion that the informal economy is made up of marginal activities that are distinct and largely unrelated to the formal sector.

FORBES: Informality: A Marker Of Opportunity

The service sector continued to expand at "a relatively subdued pace" with a marginal increase in recruitment.

BBC: Scottish bank notes

Northern Ireland construction showed a marginal increase in the third quarter but that was from a very low base in a sector which has been in a depression.

BBC: NI economy remains 'fragile'

Just as crucial for rosy growth and tax-receipt projections, Obamanomics assumes that top marginal tax rates will rise--hammering one of the most sensitive drivers of the private-sector incentive structure--but with no subsequent decline in work effort, innovation or growth rates.

FORBES: Seriously Off Track

The differences between these two schools of thought are large and evident: for dualists, the informal economy is marginal, residual and comprises those who are most disadvantaged, while for voluntarists, it is a much more complex sector with context-specific dynamics and numerous connections and implications in terms of formality and regulation.

FORBES: Informality: A Marker Of Opportunity