This paper examines the effect of knowledge sharing in audit firms on audit quality and efficiency. We analyze data from a survey of audit professionals from 22 audit firms in Taiwan matched to publicly available data on individual audits conducted by those firms. The results indicate that knowledge sharing within an audit firm is positively associated with audit quality as manifested in lower absolute discretionary accruals and the issuance of more unfavorable audit opinions. We also find that knowledge sharing within audit firms is associated with higher audit efficiency as represented by shorter audit lags. More importantly, we find that both higher audit quality and audit efficiency are simultaneously associated with higher levels of knowledge sharing, suggesting that effective knowledge sharing may help to improve both audit quality and audit efficiency. Given the regulatory changes to enhance both audit quality and audit timeliness, these findings have implications for audit firms.

Data Availability: Data used in this study are available from public sources. Survey data are available upon request.

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