Abstract
Research concerning incentives and responses to mail questionnaires usually deals with the effects on response rates of payments of less than a dollar and with mass respondents. This article reports the results of an international mail survey of elite respondents using incentives ranging from 0 to 50 dollars. The study found that larger incentives have a slight positive effect on the response rate and a substantial effect on response quality. The implications of these findings for cost-effective research are discussed.

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