We investigate price-based mechanisms with connectedness in combinatorial auctions, where with restrictions of privacy and complexity, the auctioneer asks a limited number of prices to buyers who provide demand responses. Consistent with the price-based property, several necessary and sufficient...

We model the stock market as a timing game, in which arbitrageurs who are not expected to be certainly rational compete over profit by bursting the bubble caused by investors' euphoria. The manager raises money by issuing shares and the arbitrageurs use leverage. If leverage is weakly regulated,...