We follow the production function approach to assess markups, which requires the estimation of the output elasticity of a flexible input. In the basic setup we estimate a structural value added production function, using temporary contract hours as flexible input. We find rather stable markups in the Netherlands in the period 2006–2016. We show that extending the flexible input incorrectly with fixed contract hours results in an increasing markup. Findings are robust to an alternative setup, in which a gross output production function is specified and materials are used as flexible input. Implications for applied work and policy are discussed.

中文翻译：

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双重劳动力市场的加价：荷兰的案例

我们遵循生产函数方法来评估加价，这需要估计灵活输入的输出弹性。在基本设置中，我们估计结构性增值生产函数，使用临时合同工时作为灵活输入。我们发现 2006 年至 2016 年期间荷兰的加价相当稳定。我们表明，在固定合同工时错误地扩展灵活输入会导致加价率增加。调查结果对于替代设置是稳健的，其中指定了总产出生产​​函数，并将材料用作灵活的输入。讨论了对应用工作和政策的影响。