2018年-PIIE彼得森国际经济研究所_Sector_Gains_Are_Uneven_under_2017_Tax_Law_12页_513kb

Summary of the Policy Brief: Sectoral Gains Under the 2017 Tax Act

Core Content

This policy brief analyzes the impact of the Tax Cuts and Jobs Act (TCJA) of 2017 on different sectors of the U.S. economy using market expectations and stock price data. It highlights that while the TCJA reduced the statutory corporate tax rate from 35% to 21%, the benefits were not evenly distributed across sectors. The study uses PredictIt.org and Bloomberg data to estimate the sectoral impact of the tax law and how it was anticipated by financial markets.

Main Points

• TCJA Overview: The TCJA significantly lowered the corporate tax rate and changed the tax base and international taxation rules.
• Market Expectations: The stock market reacted to the anticipated passage of the TCJA, with some sectors expected to benefit more than others.
• Sectoral Impact: The study shows that sectoral gains are uneven, with some sectors benefiting and others suffering due to changes in the tax base and statutory rates.
• Statistical Analysis: The paper uses a regression model to estimate the impact of TCJA passage on sectoral stock prices, controlling for global market trends and time periods.
• Key Sectors: Sectors with high effective tax rates, low leverage, low capital expenditures, and low foreign exposure are expected to benefit the most from the TCJA.
• Negative Impacts: Sectors such as real estate, utilities, and information technology are expected to be negatively impacted due to tax base expansions and changes in international taxation.
• Time-Related Changes: Market expectations evolved over time, especially after the international tax reform announcement in November 2017, which affected sectors with high foreign exposure.

Key Findings

• The TCJA is not sector neutral, as effective tax rates and sector-specific provisions lead to uneven economic impacts.
• Market expectations are well aligned with economic forecasts, showing a consensus on the sectoral effects of the TCJA.
• Financials and telecom services are predicted to benefit significantly from the TCJA, while real estate and information technology are expected to suffer.
• The reduction in statutory tax rates had a positive impact on sectors with high pre-TCJA effective tax rates.
• Leverage, capital expenditures, and foreign exposure are key determinants of sectoral impact.
• The TCJA’s tax base changes, such as net interest deduction limits and net operating loss restrictions, are more harmful to certain sectors than the reduction in tax rates.

Methodology

• The study uses daily stock price data from Bloomberg and daily betting odds from PredictIt.org to estimate the impact of TCJA passage on different sectors.
• It compares sectoral stock price changes with global market returns to isolate U.S. tax-driven effects.
• A regression model is used to estimate the sensitivity of each sector to the TCJA, with the following equation:

$$
\Delta P _ {t} ^ {i} = \alpha^ {i} + \gamma^ {i} \Delta R _ {t} ^ {\text {M S C I W e x U S}} + \beta^ {i} \Delta \operatorname {P r o b T a x} _ {t} + \varepsilon_{t} ^ {i}
$$

• The Time dummy is used to capture changes in market expectations over time, especially after the international tax reform announcement in November 2017.
• Appendix tables and figures support the analysis, showing sectoral sensitivities, effective tax rates, and leverage levels.

Sectoral Divergences

• Positive Impact: Telecommunications services and financials are expected to benefit the most from the TCJA, with stock price increases of 9.4% and 7.0%, respectively.
• Negative Impact: Real estate, utilities, and information technology sectors are expected to suffer, with stock price decreases of 2.1%, 1.68%, and 0.323%, respectively.
• Key Determinants:
  • Sectors with high effective tax rates benefit more from the TCJA.
  • High leverage and high capital expenditures are associated with negative impacts.
  • Foreign exposure influences the sectoral response to the TCJA, especially with the introduction of international tax provisions.
• Tobin’s Q Ratio: Sectors with low Q values (poor profitability or high capital costs) are likely to benefit from the TCJA, as they have more room for improvement.

Broader Implications

• The TCJA affects the macroeconomic environment, with higher interest rates and capital costs, but somewhat higher economic growth.
• The financial sector is expected to perform better in this environment, while real estate activity may decline.
• The individual income tax provisions of the TCJA, such as mortgage debt deduction limits, are expected to slow housing inflation.

Conclusion

The TCJA had significant sectoral effects, with some sectors benefiting and others suffering. While the overall economic impact was expected to be modest, the distribution of benefits and costs was uneven. Market expectations and economic forecasts are in line, suggesting a consensus on the sectoral impact of the tax reform. The methodology used in this brief provides valuable insights into how tax policy affects different industries and highlights the importance of sector-specific provisions in shaping economic outcomes.