Serious 3NT Serious 3NT Serious 3NT is a contract bridge bidding convention. It is used in game-forcing auctions where a major suit has been agreed upon. 1–2 if using 2/1 Game Forcing or 2–3 (Agreeing spades) The next bid indicates suitability for slam: Since Spades are the agreed trump suit, Three No Trump is not usually the best contract. Using Serious Three No Trump, a bid of Three No Trump says "I am Serious about slam", i.e. "I have a good hand". Bypassing bidding Three No Trump says "I am not Serious about Slam". Examples shown in the above auction. If one
Common value auction an explanation to jump bidding in English auctions. Two bidders, Xenia and Yakov, participate in an auction for a single item. The valuations depend on A B and C -- three independent random variables drawn from a continuous uniform distribution on the interval [0,36]: Below we consider several auction formats and find a SBNE in each of them. For simplicity we look for SBNE in which each bidder bids formula_12 times his/her signal: Xenia bids formula_13 and Yakov bids formula_14. We try to find the value of formula_12 in each case. In a sealed-bid second-price auction, there is a SBNE