There is no consensus on how strongly the Tax Cuts and Jobs Act (TCJA) has stimulated U.S. private fixed investment. Some argue that the business tax provisions spurred investment by cutting the cost of capital. Others see the TCJA primarily as a windfall for shareholders. We find that U.S. business investment since 2017 has grown strongly compared to pre-TCJA forecasts and that the overriding factor driving it has been the strength of expected aggregate demand. Investment has, so far, fallen short of predictions based on the postwar relation with tax cuts. Model simulations and firm-level data suggest that much of this weaker response reflects a lower sensitivity of investment to tax policy changes in the current environment of greater corporate market power. Economic policy uncertainty in 2018 played a relatively small role in dampening investment growth.

"From adjusted gross income to zoning and property taxes, the second edition of The Encyclopedia of Taxation and Tax Policy offers the best and most complete guide to taxes and tax-related issues. More than 150 tax practitioners and administrators, policymakers, and academics have contributed. The result is a unique and authoritative reference that examines virtually all tax instruments used by governments (individual income, corporate income, sales and value-added, property, estate and gift, franchise, poll, and many variants of these taxes), as well as characteristics of a good tax system, budgetary issues, and many current federal, state, local, and international tax policy issues. The new edition has been completely revised, with 40 new topics and 200 articles reflecting six years of legislative changes. Each essay provides the generalist with a quick and reliable introduction to many topics but also gives tax specialists the benefit of other experts' best thinking, in a manner that makes the complex understandable. Reference lists point the reader to additional sources of information for each topic. The first edition of The Encyclopedia of Taxation and Tax Policy was selected as an Outstanding Academic Book of the Year (1999) by Choice magazine."--Publisher's website.

This paper assesses the landmark Tax Cuts and Jobs Act (TCJA), from the perspective of both the U.S. itself and the wider world. The reform has many positive aspects including steps to broaden the base of, and reduce marginal rates under, the personal income tax (PIT), reduce distortions to investment and financing decisions, and mitigate outward profit shifting. But the TCJA has a large fiscal price tag and leaves significant uncertainty as to how the U.S. tax system will develop. The PIT changes could have better targeted relief at low earners, and there is scope to more fully address distortions in business taxation. The novel international provisions create a complex array of both positive and negative international spillovers, and have the potential to significantly reshape the wider international tax system.