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Governance and Taxes: Evidence from Regression Discontinuity

We implement a regression discontinuity design to examine the effect of institutional ownership on tax avoidance. Positive shocks to institutional ownership around Russell index reconstitutions lead, on average, to significant decreases in effective tax rates (ETR) and prioritisation of cash over book-tax savings. They also lead to greater use of international tax planning using tax haven subsidiaries. These effects are smaller for firms with initially strong governance and high executive equity compensation, suggesting poor governance as an explanation for the undersheltering puzzle. Furthermore, we observe the largest decreases among high ETR firms, and increases for low ETR firms, consistent with institutional ownership pushing firms towards a common level of tax avoidance.