Equipped with the one-equation theory of partial adjustment (PA) under the constant speeds of PA assumption (Nerlove, 1958) and the two-equation theory of PA under the dynamic and variable speeds of PA assumption (Lin & Kao, 2014), this paper applies the constant PA speeds (Lin et al., 2010) and dynamic PA speeds (Lin & Kao, 2014) PA valuation (PAV) approaches to analyze the grand research issue (for three research questions), namely, how IT and two important macroeconomic variables, unemployment rate and inflation rate, affect the country's performance jointly and separately from a global perspective. The ten research models are fitted into a panel data sample composed of 11 countries (Canada, France, the United Kingdom, the United States, Australia, Belgium, Denmark, Greece, Norway, Portugal, and Spain) over the period from 1993 to 2011. The results reveal that the IT productivity paradox remains in some developed countries; IT payoffs hinge on the exploitation of available complementary resources; and the complementarity and substitutability relationships between IT and unemployment and inflation rates exist.

配备PA假设恒速下的PA一方程理论（Nerlove，1958）和PA假设动态变速下的PA二方程理论（Lin＆Kao，2014），本文应用恒定 PA 速度（Lin et al., 2010）和动态 PA 速度（Lin & Kao, 2014）PA 评估（PAV）方法来分析重大研究问题（针对三个研究问题），即 IT 和从全球角度来看，失业率和通货膨胀率这两个重要的宏观经济变量共同或分别影响着国家的表现。这十个研究模型被纳入由11个国家（加拿大、法国、英国、美国、澳大利亚、比利时、丹麦、希腊、挪威、葡萄牙和西班牙）1993年至2011年期间组成的面板数据样本中结果表明，一些发达国家仍然存在IT生产力悖论；IT 回报取决于对可用补充资源的利用；IT与失业率和通货膨胀率之间存在互补性和替代性关系。