This paper presents preliminary results about how close to their offensive potential teams in the National Football League (NFL) play. Our study extends the work of previous researchers in several ways. First, we are the first to investigate the efficiency of professional football teams....

This paper examines the temporal relationship between population growth and economic growth for a sample of less developed countries. Unlike prior research efforts, Granger causality tests are conducted in the context of error correction models when cointegration is present. Of the thirteen...

The enormous growth of wind energy in Illinois and around the country has led to a shortage of wind turbines. Turbine manufacturers have sold out their capacity into 2010. To the extent that Illinois manufacturing can integrate itself into the wind turbine supply chain, Illinois can enjoy the...

The sustainability of budget deficits of the G-7 countries is examined in this paper. Following the approach taken by Hakkio and Rush it is found that in the case of Germany it appears for each dollar increase in expenditures, revenues increase by an equal amount. For France, Japan, and Italy...

This paper examines the time series properties of state and national unemployment rates. Based upon unit root, variance ratio, and cointegration tests, as well as Granger-causality and error-correction model results, several important conclusions can be made. First, forecasting models that...

This paper tests the expectations-augmented Phillips-curve hypothesis for the 50 states in the US. Unlike previous work both adaptive and rational expectations are incorporated in the modeling of the Phillips-curve relationship. Second, the role of relative regional wages are taken into account....