In this paper, we empirically test the central hypothesis of the Sraffian Supermultiplier model (SSM)—that the growth of demand induces the share of capacity creating investment in output—for the U.S. economy from 1985 to 2017. Our results show that movements in the output growth rate cause the induced investment ratio, indicating that there is a tendency for utilization to converge slowly toward some exogenous normal level. And this together with other estimated parameters of the model suggest that the SSM adjustment mechanism has been dynamically stable for the U.S. data in the period under analysis.

中文翻译：

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Sraffian Supermultiplier模型在美国经济中的增长，投资份额和稳定性（1985–2017年）

在本文中，我们对1985年至2017年美国经济的Sraffian超乘子模型（SSM）的中心假设进行了检验，即需求的增长引起了创造产出投资的能力份额。产出增长率引起投资率的诱因，表明利用趋向于缓慢地趋向某个外生的正常水平。并且这与模型的其他估计参数一起表明，在分析期间，SSM调整机制对于美国数据一直是动态稳定的。