Measuring productivity in the construction industry

The paper provides an overview of methods used to measure productivity in the construction industry. The advantages and disadvantages of average labour productivity and total factor productivity measures are discussed in detail, and the relationship between these two measures is established both theoretically and in an application at the industry level. The usefulness of any productivity measurement framework for policy-makers and industry practitioners alike depends crucially on the extent to which it enables the identification of the underlying drivers of productivity. This requirement necessitates an approach that involves formally describing the production process and explaining as much as possible of construction output in terms of the quantity and quality of inputs that are used to generate it. Whilst it is accepted that data requirements are a major constraint to such an approach, it is suggested that by establishing a robust measurement framework, data deficiencies can be defined more easily. Guidance on areas where improvements are needed is provided and it is considered that the focus of future research should be in creating new and improving existing datasets. Cet article donne une vue d'ensemble des méthodes utilisées pour mesurer la productivité dans le secteur de la construction. L'auteur examine en détail les avantages et les inconvénients de la mesure de la productivité moyenne du travail et du facteur total de la productivité; la relation entre ces deux mesures est établie tant sur le plan théorique que dans le cadre d'une application au niveau industriel. L'utilité de tout cadre de mesure de la productivité pour les décideurs politiques et les professionnels de l'industrie dépend, pour l'essentiel, de la mesure dans laquelle elle permet d'identifier les facteurs sous-jacents de la productivité. Cette exigence nécessite une approche qui implique une description formelle du processus de production et qui explique autant que possible les résultats de la construction en termes de quantité et de qualité de facteurs contributeurs qui sont utilisés pour la générer. Bien que l'on admette que les besoins en données soient une contrainte majeure pour une telle approche, on pense qu'en établissant un cadre de mesure solide, on pourrait définir plus facilement les insuffisances en matière de données. L'auteur donne des conseils sur les domaines qui doivent être améliorés et pense que les futures recherches devraient se concentrer sur la création d'ensembles de données et sur l'amélioration de ceux qui existent. Mots clés: secteur de la construction, productivité du travail, fonction de production, mesure des ressources entrant dans la production, facteur de productivité total

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