Economic Modelling of Suicide Under Income Uncertainty: For Better Understanding of Middle-Aged Suicide
Economic Modelling of Suicide Under Income Uncertainty: For Better Understanding of Middle-Aged Suicide
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收入不确定下自杀的经济模型：更好地理解中年自杀
DOI：
10.1111/j.1467-8454.2008.00349.x
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Tomoya Suzuki
中科院分区：
文献类型：
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作者：
Tomoya Suzuki
本文正式个人的决定自杀的终身效用最大化模型的框架内。这与自杀经济模型的文献一致。该文件的新奇在于考虑了收入的不确定性。收入的不确定性降低了风险厌恶者的预期效用，使他们更有可能自杀。另一方面，收入的不确定性为推迟自杀创造了价值，即使他们的收入足够低。这是因为收入的不确定性意味着如果事情进展顺利，他们将来会获得更高的收入。因此，收入不确定性对自杀行为有两个相反的影响。本文的主要目的是建立一个自杀的经济模型，研究收入不确定性对自杀行为的净影响。为此，我们假设工资是按照随机过程演变的。然后，阈值工资，低于这一个人自杀，推导出作为一个函数的随机过程的参数假设的工资演变。计算了这些参数的变化对最低工资的影响。研究结果显示，收入不确定性如何影响自杀行为。
This paper formalises an individual's decision about suicide within a framework of lifetime utility maximisation models. This is in line with the literature on economic modelling of suicide. The novelty of the paper is to take into account income uncertainty. Income uncertainty reduces a risk-averse individual's expected utility, making them more likely to commit suicide. On the other hand, income uncertainty creates a value to postponing suicide even when their income gets sufficiently low. This is because income uncertainty means that if things go well, they will get higher income in the future. Thus, income uncertainty has two opposite effects on suicidal behaviour. The main objective of this paper is to construct an economic model of suicide for investigating net impacts of income uncertainty on suicidal behaviour. For this purpose, it is assumed that the wage evolves according to a stochastic process. Then, the threshold wage, below which an individual commits suicide, is derived as a function of the parameters of the stochastic process assumed for the wage evolution. Impacts of changes in these parameters on the threshold wage are calculated. With the result, the paper shows how income uncertainty affects suicidal behaviour.