We characterize a new class of individual measures of economic insecurity in a setting where there is a single relevant variable that can be interpreted as income or consumption. Insecurity is intended to capture the difficulties faced by an economic agent when confronted with adverse events. We work with an intertemporal model and base our measures on the changes in the variable when moving from one period to the next. Our approach is axiomatic and differs from the existing literature in two respects. First, we adopt a relative (scale-invariant) concept of insecurity and, second, we restrict attention to a relatively small set of requirements that we consider plausible and intuitively appealing. As a result, we identify a large class of measures that can be thought of as providing a tool box to empirical researchers who can select those members of our class that they consider suitable for the application in question. In addition, we present a dominance criterion based on our new insecurity measures.

我们在只有一个相关变量可以解释为收入或消费的环境中描述了一种新的经济不安全个人衡量标准。不安全感旨在描述经济主体在面临不利事件时所面临的困难。我们使用跨期模型，并根据从一个时期过渡到下一个时期时变量的变化来衡量我们的指标。我们的方法是公理化的，并且在两个方面与现有文献不同。首先，我们采用相对（规模不变）的不安全概念，其次，我们将注意力限制在我们认为合理且直观上有吸引力的相对较小的一组要求上。因此，我们确定了一大类措施，可以将其视为向实证研究人员提供工具箱，他们可以选择我们类别中他们认为适合相关应用的成员。此外，我们还根据新的不安全措施提出了主导标准。