Silverberg originally titled this story "The Traders," but editor W.W. Scott felt the need to juice it up a bit as "The Unique and Terrible Compulstion." In this story of interstellar trade, Earth has monopolized the transport of goods from world to world, become fantastically wealthy in the process. But maintaining that position requires scrupulous adherence to fair dealing and honesty, so when rumors surface of untoward behavior by the lone Earth representative on Danneroi, the Merchant Service sends an agent to investigate.
Other resources
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Acknowledgements: Robert Silverberg for cause, support, and cooperation; Ken Seamon for graphics; Rodney Walters for books and info; Alvaro Zinos-Amaro for comments and content; and all the fellow fans who have sent encouragement, information, and translations.