Abstract. We examine the empirical relationship between auditors' resource allocations and selected engagement characteristics. Our measure of resources is hours of grades of labor (partner, manager, etc.) “charged” to audit activities (planning, internal control evaluation, etc.). Engagement characteristics examined are client size, industry affiliation, client complexity, risk, auditor provision of management advisory services to the auditee, and degree of control reliance. The data were obtained from publicly available sources and a survey developed and administered by an international public accounting firm. We find the cross‐sectional variation in the labor charged to various audit activities can be explained by engagement characteristics found to be important in prior studies on audit fees, total labor inputs, and the mix of labor inputs. Measures of client size, industry, complexity, risk, and services provided are associated with changes in the allocation of labor among audit activities. We find no substitution of internal control review/testing for substantive testing on reliance audits. Task assignments vary by rank. Measures of client size, complexity, risk, and services provided are associated with activity‐specific changes in the labor mix.

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SUMMARY: Audit fee negotiations conclude with the signing of an engagement letter, typically the first quarter of the year under audit. Yet investors do not learn the audit fee paid until disclosed in the following year's definitive proxy statement. We conjecture that negotiated audit fees impound auditors' consequential private, client-specific knowledge about “bad news” events investors will learn eventually. We demonstrate that a proxy for the year-to-year change in the negotiated audit fee has an economically meaningful positive association with proxies for public realizations of “bad news” events that occur during the roughly 12-month period between the negotiation of the audit fee and the disclosure of the audit fee paid. Our results suggest that negotiated audit fees contain information meaningful to investors and that if disclosed proximate to the signing of the engagement letter instead of the following year, information asymmetry between managers and investors would be reduced. JEL Classifications: G19, D89, M40. Data Availability: Available from public sources identified in the text.