The U.S. government requires most foreigners to obtain a travel visa if they wish to travel to America. The purported rationale for this requirement is to prevent unauthorized immigrants, terrorists, and other foreign-originated security threats from coming into the country disguised as...

For certain types of goods, the multiple unit auctions have to be conducted sequentially. One probable reason for this is that the different units of the goods are not available together for putting up for sale. This might happen when the objects are available in batches to the auctioneer and do...