Abstract

This paper investigates the farm-level relationship between total factor productivity (TFP) and presence and composition of immigrant workers. A theoretical model expressing how immigrant workforce influences productivity is developed and an explicit and consistent representation of the so-called ‘diversity hypothesis’ is derived. A dynamic panel specification is estimated, and the respective econometric issues are discussed. The analysis is applied to a balanced panel of Italian professional farms extracted from the Farm Accountancy Data Network over the period 2008–2015. The use of micro-level data in such assessment allows to take the wide heterogeneity across farms into account. Results suggest that, when productivity dynamics and farm heterogeneity are accounted for, empirical support to the diversity hypothesis can be found in Italian professional agriculture.

中文翻译：

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移民劳动力和农业生产力：来自意大利农场数据的证据

摘要

本文研究了全要素生产率 (TFP) 与移民工人的存在和构成之间的农场层面的关系。开发了一个表达移民劳动力如何影响生产力的理论模型，并导出了所谓的“多样性假设”的明确和一致的表示。估计动态面板规范，并讨论相应的计量经济学问题。该分析应用于从 2008 年至 2015 年期间从农场会计数据网络中提取的意大利专业农场的平衡面板。在此类评估中使用微观数据可以考虑农场之间的广泛异质性。结果表明，当生产力动态和农场异质性被考虑在内时，