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Reconstructing the yield curve

Journal of Financial Economics 2021 142(3), 1395-1425
The constant maturity zero-coupon yield curve for the US Treasuries is one of the most studied datasets. We construct a new yield curve using a non-parametric kernel-smoothing method with a novel adaptive bandwidth specifically designed to fit the Treasury yields. Our curve is globally smooth while still capturing important local variation. Economically, we show that applying our data leads to different conclusions from using the leading alternative data of Gürkaynak et al. (2007) (GSW) when we repeat two popular studies of Cochrane and Piazzesi (2005) and Giglio and Kelly (2018). Statistically, we show our dataset preserves information in the raw data and has much smaller pricing errors than GSW. Our new yield curve is maintained and updated online, complemented by bandwidths that summarize information content in the raw data.

China’s Pseudo-monetary Policy

Review of Finance 2015 19(1), 55-93 open access
China’s monetary stimulation after the global financial crisis rapidly boosted its GDP. We argue that its efficacy derives from state control over its banking and corporate sectors. Beijing ordered state-owned banks to lend and they lent. Beijing ordered centrally-controlled state-owned enterprises (SOEs) to invest and they invested. Our data show much of this investment was highly leveraged purchases of real estate and land prices rises occurred where these SOEs were active buyers. This episode mimics the credit channel for monetary policy, but actually entails internal transfers between arms of the government pressuring on real estate prices upwards.

The Four-Equation New Keynesian Model

The Review of Economics and Statistics 2023 105(4), 931-947
This paper develops a New Keynesian model featuring financial intermediation, short- and long-term bonds, credit shocks, and scope for unconventional monetary policy. The log-linearized model reduces to four equations: Phillips and IS curves, as well as policy rules for the short-term interest rate and the central bank's long-bond portfolio (QE). Credit shocks and QE appear in both the IS and Phillips curves. In equilibrium, optimal monetary policy entails adjusting the short-term interest rate to offset natural rate shocks but using QE to offset credit market disruptions. Use of QE significantly mitigates the costs of a binding zero lower bound.

The Local Labor Market Effect of Relaxing Internal Migration Restrictions: Evidence from China

Journal of Labor Economics 2024 42(1), 161-200
We study how a significant relaxation of internal migration restrictions affects labor market outcomes of incumbent migrants and natives, exploiting the 2014 hukou reform in China, which substantially removed the migration barriers of cities with an urban population below 5 million (nonmegacities). Using a difference-in-differences method, we find that migrants’ wages in nonmegacities experienced approximately a 2.6%–7.9% decline relative to that in megacities after the policy. The policy had nonnegative impacts on the wages of natives in nonmegacities. These results suggest that the downward wage pressure imposed by new migrants falls primarily on incumbent migrants rather than on natives.

Mind the Gap: Why Do Experts Have Differences of Opinion Regarding the Sufficiency of Audit Evidence Supporting Complex Fair Value Measurements?

Contemporary Accounting Research 2019 36(3), 1417-1460
Reported deficiencies continue to persist in audits of fair value measurements and other complex accounting estimates (hereafter, “FVMs”), despite improvements in auditor performance observed by regulators. The persistence of reported deficiencies in audits of FVMs suggests that factors underlying this trend may be more complicated and multidimensional than previously suggested by regulators and academic research, which has focused largely on auditors' unsatisfactory performance as the principal source of reported deficiencies. Drawing from the judgment and decision‐making expertise literature, we gather field‐based data from audit experts to identify additional factors that are likely to be contributing to differences of opinion between audit and inspection experts and the persistence of reported deficiencies in audits of FVMs. We find evidence that audit experts interpret standards and evaluate audit evidence differently than inspectors, and thus perceive there to be a gap between what auditors and inspectors regard as sufficient appropriate audit evidence to support audits of FVMs (hereafter, “FVM gap”). Moreover, results highlight several areas in audits of FVMs where differences of opinion exist between auditor and inspector experts regarding what constitutes a reported deficiency. Within the contexts we examine, our results identify additional factors, beyond deficient auditor performance, that may contribute to the FVM gap. We also report audit partners' recommendations for ways to reduce the FVM gap and suggest avenues for future research. Gaining a more complete understanding of sources contributing to reported deficiencies will help regulators, standard setters, audit firms, and academics to identify ways to reduce the FVM gap and reported deficiencies in audits of FVMs.

Use of High Quantification Evidence in Fair Value Audits: Do Auditors Stay in their Comfort Zone?

The Accounting Review 2017 92(5), 89-116
Research documents significant management bias and opportunism around the discretionary inputs of audited complex estimates, including fair value measurements (FVMs), which raises questions about auditors' ability to test these estimates. We examine how the degree of quantification in client evidence and client control environment risk influence auditors' planned substantive testing of management's discretionary inputs to FVMs. We find that auditors allocate a lower proportion of effort to testing the subjective inputs to the fair value estimate when the degree of quantification in the client evidence and level of client risk are both high. Further, this tendency persists even after auditors receive a regulatory practice alert reminding them to focus more audit effort on testing fair value (FV) inputs that are susceptible to management bias, and despite the auditors increasing their overall audit effort. Qualitative analyses of the procedures auditors selected indicate that inapt attention to the degree of quantification in evidence is a potential root cause of the difficulty auditors encounter when testing complex estimates. Our results imply that in situations where both quantified and non-quantified data are important to the audit, there is the potential for management to manipulate the evidence they provide to auditors to distract auditors from testing the discretionary inputs to complex estimates that are susceptible to management opportunism. Data Availability: Contact authors for data availability.

Can Auditors Pursue Firm-Level Goals Nonconsciously on Audits of Complex Estimates? An Examination of the Joint Effects of Tone at the Top and Management's Specialist

The Accounting Review 2020 95(6), 367-394
We examine whether tone at the top emphasizing firm-level commercial, audit quality, or both goals (balanced) can nonconsciously affect auditors' engagement-level tendency to accept management's estimates, and whether the effects differ if management engages a specialist. This study is motivated by academics' and regulators' increasing attention on firm-level tone at the top and concerns about management bias in audited estimates, especially when the evidence is prepared by management's specialist. We find firm-level goals can be pursued nonconsciously by auditors when performing a complex task. When management's specialist is absent, a balanced approach reduces auditors' tendency to agree with management's estimate compared to a commercial approach; however, it is less effective when management's specialist is present. We find an audit quality approach reduces auditors' tendency to accept management's estimate compared to a commercial approach, regardless of the absence/presence of a specialist. Our results have important implications for regulators and audit firms. Data Availability: Data are available from the authors upon request.

Term Premia and Inflation Uncertainty: Empirical Evidence from an International Panel Dataset: Comment

American Economic Review 2014 104(1), 323-337
Term premia implied by maximum likelihood estimates of affine term structure models are misleading because of small-sample bias. We show that accounting for this bias alters the conclusions about the trend, cycle, and macroeconomic determinants of the term premia estimated in Wright (2011). His term premium estimates are essentially acyclical, and often just parallel the secular trend in longterm interest rates. In contrast, bias-corrected term premia show pronounced countercyclical behavior, consistent with theoretical and empirical arguments about movements in risk premia.