I develop a structural model to quantify the costs of tax avoidance. In the model, the firm trades off tax savings with tax audit risk, financial reporting considerations, and operational frictions imposed by tax avoidance, the last of which I label as nontax costs. The estimated parameters suggest nontax costs, which are difficult to observe, decrease pretax income by 6.4 percent or $58 million per firm-year. The large magnitude of this estimate can explain why firms appear to underutilize tax avoidance strategies. Through counterfactual analysis, I estimate the effect of tax audit risk and financial reporting considerations to find that financial reporting considerations have an effect on tax avoidance similar to the penalties imposed by tax authorities. Overall, the estimated parameters help explain the “undersheltering puzzle.”

We address how value relevance of accounting information evolved as the new economy developed. Prior research concludes that accounting information—primarily earnings—has lost relevance. We consider more accounting items and find no decline in combined value relevance from 1962 to 2018. We assess evolution in each item’s value relevance and find increases, most notably for items related to intangible assets, growth opportunities, and alternative performance measures, which are important in the new economy. The number of relevant items also increases. We also consider separately new economy, old economy profit, and old economy loss firms. The trends are more pronounced for, but extend beyond, new economy firms. We base inferences on a nonparametric approach that does not require specifying the valuation relation. Taken together, our findings reveal an evolution to a more nuanced, but not declining, relation between accounting information and share price.