The pricing of audit and non-audit services in a regulated environment: a longitudinal study of the UK life insurance industry
利用1999-2009年英国寿险公司面板数据，研究发现审计费与精算服务费正相关（知识溢出），与税务服务费负相关（独立性受损），且2004年后监管变化抑制了损害独立性的非审计服务购买。
This paper studies the relationship between audit and non-audit service fees paid to the statutory auditor by UK life insurance firms, utilising an extensive panel-data sample set for the period 1999–2009. Consistent with a knowledge spillover (impairment of independence) hypothesis, we predict and find that audit fees are positively (negatively) associated with actuarial (tax service) fees. Additionally, our results indicate that regulatory changes enforced after 2004 deterred UK life insurance firms from purchasing non-audit services that are perceived to impair auditor independence. Finally, we find evidence concerning the inter-temporal determination of audit fees.