Business income constitutes a large and increasing share of income and wealth at the top of the distribution. We discuss how tax policy treats and shapes how businesses are organized and how they distribute economic gains to owners, with the focus on closely held and pass-through firms. These considerations influence whether and how labor and capital income is observed in economic data and feed into research controversies regarding the measurement of inequality and the progressivity of the tax code. We discuss the importance of these issues in the United States and highlight that limited evidence from other countries suggests that they are likely to be important elsewhere.

中文翻译：

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最高的商业收入

营业收入在收入和财富分配的顶端构成了很大的份额，而且份额不断增加。我们讨论了税收政策如何对待和塑造企业的组织方式以及它们如何将经济收益分配给所有者，重点关注封闭式和转手公司。这些考虑会影响是否以及如何在经济数据中观察到劳动和资本收入，并引发关于不平等衡量和税法累进性的研究争议。我们讨论了这些问题在美国的重要性，并强调来自其他国家的有限证据表明它们可能在其他地方很重要。