保守性是對不確定性的一種審慎反應,其試著確保公司的風險與不確定能適當地被考量(FASB, 1980, No.2)。在FASB概念性的釋義下,公司的保守性與不確定性有其關聯性。本研究即是對公司的保守性與不確定性的相關性進行分析,即檢驗公司本期採用較保守的會計制度,是否會降低公司下一期的風險。本研究的實證結果顯示公司本期採用較保守的會計制度的確會降低下一期公司所面臨的風險,反之亦然。本研究亦發現公司的保守性存在一個長期的均衡水準,即公司採用過於保守或過於積極(Aggressive)的會計制度會導致下期的公司的保守程度降低或上升而趨向於長期的均衡水準,同時導致下期公司的風險降低或上升。
Conservatism is “a prudent reaction to uncertainty to try to ensure that uncertainty and risks inherent in business situation are adequately considered (FASB 1980, No.2).” Intuitively, the firm’s uncertainty is associated with conservatism. We investigate the association between firm’s risk and conservatism. Specifically, we examine whether adopting conservative accounting would reduce firm’s uncertainty. We suggest that the higher degree of conservatism the firm adopts reduce the firm’s risk in the following period. Furthermore, we investigate whether over (under) conservatism would result in less (more) conservatism in the following period. We obtain strong evidence indicates that conservatism might converge to a long-term mean. Our collective evidence is consistent with the suggestion that the firm’s uncertainty adjusts with the changes in accounting conservatism. An increase in the level of conservatism would result in a decrease in the firm’s uncertainty in the following period. On the other hand, a decrease in the level of conservatism would lead to an increase in firm’s risk in the following period.