DATA FOR: Reassessing the Classical Investment Function. A panel data analysis from NAFTA-USMCA

This study applies the second generation of panel cointegration techniques in conjunction with those estimators that control cross-sectional dependence to test the plausibility of the classical approach to capital accumulation in Canada, Mexico, and the United States from 1960 to 2019 empirically. The findings suggest that private investment is positively related to the profit rate, unit labour costs, and growth in demand both in the short and long-run, while the causality analysis indicates potential feedback loops between the variables.本研究采用第二代面板协整技术，结合控制截面相关性的估计量，对1960年至2019年加拿大、墨西哥与美国的资本积累经典研究路径的合理性开展实证检验。结果表明，无论短期还是长期，私人投资均与利润率、单位劳动成本及需求增长呈正相关；而因果分析显示，各变量间存在潜在的双向反馈循环关系。