内容简介：
This work addresses the measurement of the effect of information technology (IT) investments on a firm's productivity. Determining a quantifiable impact of a firm's IT has plagued senior executives, researchers and policy makers for several years, as evidenced by articles in trade magazines such as "Fortune and Businessweek" and in academic journals such as "Management Science". Simple statistical techniques for measuring IT impact in a firm are fraught with methodological problems, as these techniques do not account for either the causal direction in managerial decision making or the behaviourial assumptions about firms. Therfore such studies have led to results and inferences that are not generalizable. While studies that measure the satisfaction of people who use IT are important, management typically would like to know whether IT has reduced operation costs by streamlining processes or increased revenues by increasing the demand-meeting capability of the firm. This book attempts to determine cost-reduction or output-enhancement that may be linked to IT investments through methodological sophistication.