Presenting securities cases to juries can involve difficult problems. Many jurors may have investments in the stock market or in mutual funds, directly or through their retirement plans, and may have some sense of how securities markets work. Some jurors, on the other hand, find all financial matters to be daunting. Furthermore, even fairly sophisticated jurors don’t have a good knowledge of accounting terms or of securities law concepts such as “causation” and “fraud,” which may have quite different shades of meaning in the law from their meanings in everyday life. Thus, it is extremely important to present securities cases, which may involve issues of insider trading, fraud, or self-dealing, in ways that a jury can understand based on their basic knowledge of how a market works and their day-to-day sense of fairness.