Non‐pecuniary rewards to work, or psychic income, are a pervasive phenomenon in several labour markets, yet they have been little investigated either theoretically or empirically. Creative industries are a particular case where non‐monetary incentives are widely observed. These are also industries where moonlighting commonly occurs because artistic or creative activity is generally low paid, such that workers have to balance their chosen pursuit with another job to make ends meet. In this paper we propose a labour supply model that accounts for the psychic income derived from creative work, monetary remuneration and heterogeneity between occupations in a multiple job‐holding context. The model is estimated using three‐stage least squares, allowing us to control for simultaneity bias due to the constraint of time and the tendency for multiple job‐holdings. We estimate the model using data from a survey of Australian book authors. The use of a proxy for psychic income, measured as the disparity between an author’s monetary compensation and a shadow price of labour, enables us to gauge the effects of non‐pecuniary benefits on the labour supply decisions of this type of creative worker.

中文翻译：

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非金钱奖励，多份工作的持有和创意工作者的劳动力供应：以书籍作者为例*

在一些劳动力市场中，非金钱的工作报酬或精神收入是一种普遍现象，但从理论上或经验上都未对其进行研究。创意产业是一种特殊的情况，其中广泛采用了非货币激励措施。在这些行业中，由于艺术或创意活动的报酬通常很低，因此通常也会出现月光，因此工人必须在选择的工作与另一份工作之间取得平衡，以维持生计。在本文中，我们提出了一种劳动力供给模型，该模型考虑了在多个工作岗位背景下创意工作，金钱报酬和职业之间的异质性所产生的心理收入。该模型是使用三阶段最小二乘估计的，使我们能够控制由于时间的限制和同时拥有多个职位而导致的同时偏差。我们使用来自澳大利亚图书作者的调查数据估算模型。使用心理收入的替代指标（根据作者的货币补偿与劳动力影子价格之间的差异来衡量），使我们能够评估非金钱利益对这类创意工作者的劳动力供应决策的影响。