For example, in the United States, if the combined credits in both countries allow the worker to meet the eligibility requirements, a partial allowance may be paid on the basis of the share of the total career of the person completed in the paying country. A number of factors determine the nature of the social security contributions to be paid by employers and workers, as well as their respective monetary consequences. (Figure 1 below shows some examples of different rates for survey income.) The provisions to remove double coverage with respect to workers are similar to all of the United States. . . .