Learning to trade: It's academic By Leslie K. Mcnew, Tup Ingram | October 1, 2009 The four-hour vs. one-hour girth model for trading currencies incorporates volatility, momentum and velocity. We discuss a program that teaches the girth model and how the model can be used to manage a currency portfolio prudently. Flyer Forex Girth Model update By Leslie K. Mcnew, Tup Ingram | October 27, 2009 In September Leslie McNew's students began trading the four-hour girth model. Here is a progress report. Flyer Forex Girth Model Update By Leslie K. Mcnew, Tup Ingram | November 2, 2009 This week's update on the University of Dayton students' trading simulation based on the four-hour girth model.