A fundamental role of financial markets is to gather information on firms’ investment opportunities, and so help guide investment decisions in the real sector. We argue in this paper that firms’ overinvestment is sometimes necessary to induce speculators in financial markets to...

In this paper we show that profitable market manipulation via trade is possible if prices perform an allocational role. If market prices affect the real value of an asset (e.g. because they contain information relevant to a firm's investment decisions), a potentially informed speculator may wish...