Target firms in Australian takeovers are required to obtain an independent assessment of the offer price in situations where the Corporations Law considers the bidder has a superior bargaining position. The intention of this requirement is to protect target shareholders from being offered a lower takeover premium. The only empirical study of expert reports, Eddey (1993), is consistent with expert reports achieving their purpose, as the results indicate no difference in target firm premiums in offers with and without an expert report. Eddey also reports that a revision in offer price is more likely where an expert indicates the bid is �not fair and reasonable.� Using all takeovers from 1990 to 2000, this thesis aims to re-examine and substantially extend the findings in Eddey. As the sample includes all bids, irrespective of the form of payment consideration, the thesis will assess whether the results in Eddey can be extrapolated from cash-based bids to all takeover bids. In addition, the analysis will extend Eddey�s results by investigating whether expert reports result in a higher probability of a revision in offer price relative to takeovers without an expert report. This study also investigates the impact of the expert report on bidder announcement abnormal returns and examines the returns to both bidders and targets when the expert report is released. This will add to the limited current knowledge on the impact of expert reports on the capital market. This thesis also tests the validity of public criticisms of expert independence. Firstly, experts have been publicly criticised on the basis that they are not independent from the target firm. It has been suggested that such experts will be more likely to provide an opinion that agrees with the recommendation of target directors. Secondly, it has been alleged that experts who are also the target auditor provide their reports at a lower fee by cross-subsidising the reports� preparation from other fees received from the client. The concern with this practice is that these reports may be of lower quality. This criticism is tested by developing an expert fee model. This fee model is then used to assess whether, similar to evidence in the auditing field, �quality� experts earn a fee premium. The results indicate that the need for an expert report does not affect bidder abnormal returns at either the announcement of the takeover or release of the expert report. On the other hand, target shareholders earn significantly lower abnormal returns at the announcement of a bid where an expert report is required. This result is inconsistent with Eddey (1993) and raises doubt over whether experts prevent bidders from using their superior bargaining position to offer target shareholders a lower premium. Consistent with Eddey, the probability of an alteration in offer price is greater where an adverse expert opinion is given. The results also show that the presence of an expert increases the likelihood of a bid revision relative to takeovers in general. Target abnormal returns on the release of an expert report are positive and significant, irrespective of the type of expert opinion. This result however, is sensitive to any association between the author of the report and the target. In the case that an expert discloses any prior or current business dealings with the target, abnormal returns are insignificant. The conclusion from this finding is that the market perceives expert reports prepared by an associate of the target as lacking credibility. In light of this lack of information content it is recommended corporate regulators review those experts permitted to prepare reports. Contrary to the published criticisms, experts who have business dealings with the target are just as likely as other experts to provide an opinion that agrees with the recommendation of directors. The tests of a fee reduction by experts associated to the target indicate significant lower fees where the expert is the target auditor. Further analysis shows this result is only significant where the auditor is also a non-Big 6/5 firm. These auditors are also found to provide reports that are significantly shorter than other experts, suggesting the cut in fee is achieved by reducing the amount of effort. The results also find that the top two experts, Grant Samuels and Associates and Price Waterhouse Coopers, earn a fee premium over other experts. The finding of a fee premium for a large accounting firm indicates that such firms may receive a premium for both auditing and non-audit services.

Target firms in Australian takeovers are required to obtain an independent assessment of the offer price in situations where the Corporations Law considers the bidder has a superior bargaining position. The intention of this requirement is to protect target shareholders from being offered a lower takeover premium. The only empirical study of expert reports, Eddey (1993), is consistent with expert reports achieving their purpose, as the results indicate no difference in target firm premiums in offers with and without an expert report. Eddey also reports that a revision in offer price is more likely where an expert indicates the bid is �not fair and reasonable.� Using all takeovers from 1990 to 2000, this thesis aims to re-examine and substantially extend the findings in Eddey. As the sample includes all bids, irrespective of the form of payment consideration, the thesis will assess whether the results in Eddey can be extrapolated from cash-based bids to all takeover bids. In addition, the analysis will extend Eddey�s results by investigating whether expert reports result in a higher probability of a revision in offer price relative to takeovers without an expert report. This study also investigates the impact of the expert report on bidder announcement abnormal returns and examines the returns to both bidders and targets when the expert report is released. This will add to the limited current knowledge on the impact of expert reports on the capital market. This thesis also tests the validity of public criticisms of expert independence. Firstly, experts have been publicly criticised on the basis that they are not independent from the target firm. It has been suggested that such experts will be more likely to provide an opinion that agrees with the recommendation of target directors. Secondly, it has been alleged that experts who are also the target auditor provide their reports at a lower fee by cross-subsidising the reports� preparation from other fees received from the client. The concern with this practice is that these reports may be of lower quality. This criticism is tested by developing an expert fee model. This fee model is then used to assess whether, similar to evidence in the auditing field, �quality� experts earn a fee premium. The results indicate that the need for an expert report does not affect bidder abnormal returns at either the announcement of the takeover or release of the expert report. On the other hand, target shareholders earn significantly lower abnormal returns at the announcement of a bid where an expert report is required. This result is inconsistent with Eddey (1993) and raises doubt over whether experts prevent bidders from using their superior bargaining position to offer target shareholders a lower premium. Consistent with Eddey, the probability of an alteration in offer price is greater where an adverse expert opinion is given. The results also show that the presence of an expert increases the likelihood of a bid revision relative to takeovers in general. Target abnormal returns on the release of an expert report are positive and significant, irrespective of the type of expert opinion. This result however, is sensitive to any association between the author of the report and the target. In the case that an expert discloses any prior or current business dealings with the target, abnormal returns are insignificant. The conclusion from this finding is that the market perceives expert reports prepared by an associate of the target as lacking credibility. In light of this lack of information content it is recommended corporate regulators review those experts permitted to prepare reports. Contrary to the published criticisms, experts who have business dealings with the target are just as likely as other experts to provide an opinion that agrees with the recommendation of directors. The tests of a fee reduction by experts associated to the target indicate significant lower fees where the expert is the target auditor. Further analysis shows this result is only significant where the auditor is also a non-Big 6/5 firm. These auditors are also found to provide reports that are significantly shorter than other experts, suggesting the cut in fee is achieved by reducing the amount of effort. The results also find that the top two experts, Grant Samuels and Associates and Price Waterhouse Coopers, earn a fee premium over other experts. The finding of a fee premium for a large accounting firm indicates that such firms may receive a premium for both auditing and non-audit services.

本研究將我國獨立專家可能發揮之功能分為能夠認證交易係公平且無弊端之「消極認證功能」及能積極預測綜效並為市場排除不具綜效交易之「積極認證功能」，並藉由分析代理成本與獨立專家選擇之關聯性，以及獨立專家自我選擇與併購後綜效之關聯性，實證探討我國獨立專家制度之運作概況及其功能。 研究結果發現，衡量代理成本之公司及交易特性變數中，負債比率較高、外部大股東持股比率較低、機構投資人持股比率較低、併購溢價較高、主併與被併公司相對規模較接近時，公司聘僱高聲譽獨立專家的可能性較高，支持我國獨立專家可能具有降低代理成本之消極認證功能之論點。積極認證功能方面，本研究發現，以併購金額市佔率衡量獨立專家聲譽時，高聲譽獨立專家簽發評價報告之併購案，併購後市場佔有率成長幅度較高，支持我國獨立專家可能具有積極認證功能之論點，但僅限於市場綜效部分。 / This study tests whether the negative certification function and positive certification function are important service performed by independent experts in the M&A transaction. It conducts an empirical investigation of the choice of independent experts and the synergy in the M&A transaction. The result demonstrates that when the debt ratio is high, the percentage of stock owned by institutional owners and external shareholders is low, the premium is high, and the size of acquirer and target is similar, acquirer tends to hire a more prestigious independent expert. It confirms that the negative certification function exists. In addition, we find that when the reputation (measured by market share) of independent experts is high, the market synergy in the M&A may be higher than others. It is because of that the independent experts tend to protect their reputation by choosing their clients rigorously. Therefore, the positive certification function is also confirmed.