實證結果顯示，銀行作業風險事件發生後會造成聲譽損失，且在不同作業事件型態與不同損失大小下的作業風險事件亦會造成銀行聲譽損失。在作業風險事件全樣本下，當資本適足率與銀行規模大小越大，發生聲譽損失的可能越大；而無形資產與股價淨值比越大，發生聲譽損失的可能越小。在「內部詐欺」型態下，財務槓桿比率與負債比率越大，遭受聲譽損失可能越大；而總資產報酬率及無形資產越大，聲譽損失影響越小。在「客戶、產品、詐欺」型態下，財務槓桿比率與負債比率增加，會提高聲譽損失的可能；而總資產報酬率與股價淨值比增加，會降的聲譽損失的可能。「執行、運送及作業事件」型態下，財務槓桿比率、資本適足率、負債比率與總資產報酬率越高，遭受聲譽損失的可能越高；而股價淨值比越高，遭受聲譽損失的可能越低。 The occurrence of operational risk events can affect the substance of the loss of financial institutions themselves, but also because of negative news may indirectly lead to the loss of financial institutions, resulting in reputational risk. This study examines the impact of reputational damage to the stock market reaction caused by operational risk events during 1993 to 2015. We adjust stock returns by adding the market capitalization of the banks and the operational loss to estimate the cumulative abnormal returns of reputational risk between operational risk event date, and measure factors that may affect the reputation risks. The results show that bank will occur reputational damage after suffer the operational risk events. Under different operational event types and different size of loss, bank operational risk events also affect reputational damage. In the all operational events sample, higher bank of international settlement ratio, bank size and lower intangible assets and price to book ratio increase the probability of reputational damage. The probability of reputational damage increase as financial leverage ratios and debt ratio increase and as return on total assets ratio, intangible assets decrease in the “Internal frauds” event type. The probability of reputational damage increase as financial leverage ratios and debt ratio increase and as return on total assets ratio and price to book ratio decrease in the “Internal frauds” event type. Higher financial leverage ratios, bank of international settlement ratio, debt ratio, return on total assets ratio and lower price to book ratio increase the probability of reputational damage in the “Execution delivery and process management” event type.
