Once these resources run out - and they are running out - rising labor income must fill the gap.

For example, the realization of labor income for a given individual is private information and it cannot be known without cost by anyone else.

In 1979, almost 40% of the county's labor income came from the wood and paper products sector.

The risk of fluctuations in nominal labor income would then be shared between workers and retirees.

With these adjustments, real labor income per hour in 1986 was lower than in every year from 1970 to 1978.

Prior to the reform, about 90 percent of the personal tax base consisted of labor income.

All of these efforts point to a system that taxes only labor income like wages and salaries.

Under the Hall plan, individuals would pay tax on all labor income - wages, salaries and pension distributions.

What has changed is that highly skilled laborers earn more labor income than low-skilled workers.

The shorter work-week alone would provide 10 million jobs and increase labor income by 14 percent.