The Globe and Mail attempts to identify materials stocks with positive economic momentum in its Tuesday, Nov. 11, edition. The Globe's Michael Cloherty writes in the Number Cruncher column that he only considered companies with a minimum market capitalization of $500-million. Mr. Cloherty also looked for a positive performance spread, which is the difference between the return on capital and the cost of capital. Investors want this number to be positive because it reflects wealth creation. Mr. Cloherty says it is important to evaluate how much higher the return on capital is versus the cost of capital. His picks had to have a positive economic value added (EVA) change over the past 12 months. An increasing EVA will show value generation by a company for investors. EVA is calculated by subtracting capital charges from the net operating profit after tax. As well, Mr. Cloherty's picks had to have positive EVA change over the past 24 months. Material stocks with positive momentum are Winpak, West Fraser Timber, Chemtrade Logistics Income Fund, Stella Jones, Canfor, Intertape Polymer Group, CCL Industries, Methanex, Canfor Pulp Products, Western Forest Products and Domtar.