The increase in income inequality in many countries, apparently due to a greater relative increase in upper incomes, has become a public policy concern. This paper shows that the standard Gini index underestimates the rate of increase in inequality because a shift of income towards the top...

In a recent securities law case, the statistical methods used by the regulator in analysing data on daily commissions and hypothetical profits from initial public offerings (IPOs) assumed that the data on consecutive days were independent. Consecutive observations in most business and economic...

After plaintiffs prevail in employment discrimination cases, courts need to estimate the compensation they deserve. This issue arose after a defendant was found to have discriminated against job applicants older than 40 years. In order to compensate the successful plaintiffs, the court needed to...

This article describes some special problems facing expert witnesses presenting statistical evidence when they testify in court. Since the legal system, especially in civil cases, serves as a dispute resolution process that needs to reach a decision in a timely manner, its objectives and...

On November 5, 2020, the Office of Federal Contract Compliance in the Department of Labor issued new rules codifying the procedures it will use to resolve equal employment issues. First, this paper summarizes the new rules focusing on how the agency will use and evaluate statistical evidence in...

Despite the rhetoric in the popular and business press trumpeting the removal of `the limitations of geography`, a number of researchers have demonstrated that rather than simply dispersing, the Internet in fact exhibits an uneven spatial pattern throughout the United States and world. Using a...