A host of industrialised countries have seen concentration in their industries grow. This trend is fuelling concerns about falling competition. This article focuses on the changing pattern of market concentration in Australia from 2002 to 2017. On average, market concentration has been rising. However, beneath the aggregate statistics, the pattern is rather mixed, with concentration falling in several sectors. The study also detects a pattern of strong productivity growth alongside a shift towards capital intensive operation and increasing trade where concentration is growing. Overall, the implications of these findings point to the possibility that rising market concentration in some industries is technology driven and not due to a lack of competition.

中文翻译：

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澳大利亚工业市场集中度趋势

许多工业化国家的工业集中度都在增长。这种趋势加剧了人们对竞争下降的担忧。本文重点介绍2002年至2017年澳大利亚市场集中度的变化模式。平均而言，市场集中度一直在上升。然而，在总的统计数据之下，这种模式是混杂的，集中度在几个部门下降。这项研究还发现了生产率强劲增长的模式，同时转向资本密集型运营并在集中度不断提高的情况下增加了贸易。总体而言，这些发现的含义表明，某些行业市场集中度的提高是由技术驱动的，而不是由于缺乏竞争而引起的。