“…Easton and Monahan, 2003;Gode and Mohanram, 2003;Botosan and Plumlee, 2004). Although these different models or techniques provide estimates of 'reasonable' magnitude, the search for a model that is easy to use and provides accurate and stable estimates over time is not over yet (Fama and French, 1997;Madanoglu and Olsen, 2005).…”