| prison labor | 5.07 | It employs prison labor. | ||
| sweatshop labor | 1.91 | He has been campaigning to force U.S. businesses to end use of sweatshop labor abroad. | ||
| farm labor | 1.58 | Farm labor is also hard to track. | ||
| immigrant labor | 1.25 | They tap immigrant labor. | ||
| inmate labor | 0.72 | They may use inmate labor to make the Toyla Tabs. | ||
| year labor | 0.46 | This year labor acted on the suggestion. | ||
| construction labor | 0.39 | East Timorese construction workers labor to rebuild one of the hundreds of burned out buildings in Dili last week. | ||
| low-wage labor | 0.39 | The desire for low-wage labor is not the only reason South Korean companies are interested in investing in the North. | ||
| contract labor | 0.33 | She also expressed hope that China would continue to supply contract labor for large-scale construction projects. | ||
| scab labor | 0.33 | The mill was started up with scab labor. | ||
| field labor | 0.26 | The field labor is just as hard as it was in California, and the hours are just as long. | ||
| left-wing labor | 0.26 | Leaders of left-wing labor, student and environmental groups insist that daily demonstrations will be loud, but peaceful. | ||
| sport labor | 0.26 | Most see sports labor as a contradiction in terms. | ||
| student labor | 0.26 | All this student labor shaves thousands off the cost of running the school. | ||
| wage labor | 0.26 | Delbanco wondered whether coercion was too broad a term to encompass both factory wage labor and slave labor. |