This paper studies simultaneous multilateral search (SMS) in over-the-counter markets: When searching, a customer simultaneously contacts several dealers and trades with the one offering the best quote. Higher search intensity (how often one can search) improves welfare, but higher search capacity (how many dealers one can contact) might be harmful. When the market is in distress, customers might inefficiently favor bilateral bargaining (BB) over SMS. Such a preference for BB speaks to the sluggish adoption of SMS trading, like request-for-quote protocols, in over-the-counter markets. Furthermore, a market-wide shift to SMS may not be socially optimal.

Collateral frictions have a profound effect on our economic landscape, ranging from the design of financial securities, laws, and institutions, to various rules and regulations. We analyze a model with disagreement, where securities and collateral requirements are endogenous. It shows that the security that isolates the variable with disagreement is “optimal” in the sense that alternative securities cannot generate any trading. In an economy with N states, investors may introduce more than N securities, and markets are still incomplete. The model has several novel predictions on the behavior of basis—the spread between the prices of an asset and its replicating portfolio.

This paper empirically examines how listed non-financial firms use the “call option” feature of one of the most important financial assets, available-for-sale securities, as earnings manipulation tools owing to bad-news-hoarding motives. In 2007, China set its first accounting standards for financial instruments, which classify financial assets based on the highly subjective “managerial holding intention” criterion. We find that holding available-for-sale securities is positively associated with the likelihood of stock price crashes in Chinese listed firms. The main effect is more pronounced under lax external regulation and lower information transparency. It is further accentuated when CEOs have lower educational backgrounds, weaker competence in managing core business activities, or face greater performance pressures. Our findings indicate that, in typical emerging markets, fair value accounting may have unintended consequences, inducing non-financial firms to employ financial assets as tools to hoard bad news.