Sancy Sancy The Sancy, a pale yellow diamond of , was once reputed to have belonged to the Mughals of antiquity, but is more likely of Indian origin owing to its cut, which is unusual by Western standards. The shield-shaped stone comprises two back-to-back crowns (the typical upper half of a stone) but lacks any semblance to a pavilion (the lower portion of a stone, below the girdle or midsection). The Sancy's known history began circa 1570. Several sources state it belonged to Charles the Bold, Duke of Burgundy. After Charles died, in 1495 it passed to his cousin King Manuel
Deferred-acceptance auction Alice)! In contrast, the DAA will reject Alice, then accept Bob and Carl, and charge each of them his threshold price, which is $3M - so they do not gain anything from their misreport (in fact, they lose $2M). The performance of deferred-acceptance auctions is analysed in. An application of this idea in a double auction setting is given in. Deferred-acceptance auction A deferred-acceptance auction (DAA) is an auction in which the allocation is chosen by repeatedly rejecting the least attractive bids. It is a truthful mechanism with strategic properties that make it particularly suitable to complex auctions such as