I report the results of an experiment designed to investigate the influence of noncredible communications and group affiliation on auditors' formation of self-serving bias. I find that manager-subjects use noncredible communications to induce auditors to develop an unwarranted trust of managers (i.e., a biased judgment). However, the bias is neutralized when auditor-subjects belong to groups that create social pressure to conform to group norms. Thus, my finding calls into question the Bazerman et al. (1997) conclusion that auditors cannot conduct impartial audits due to self-serving biases resulting from repeated interactions between auditors and their clients.

Studies the extent to which corporate information senders develop reputations for truthful reporting. Reputation formation; Incentives for voluntary dissemination of information; Buyers' forecasting and bidding strategies.

[This paper presents the results of an experiment designed to investigate the extent to which information senders develop reputations for truthful reporting. The results indicate that senders were more likely to report truthfully when their misrepresentations imposed costs on the receivers of their reports. With repeated interactions, receivers of the reports were able to discern the sender's reporting strategies, but provided no economic reward for truthfulness.]

The purpose of this paper is to investigate the impact of legal penalties on audit quality under different legal regimes. We investigate whether audit quality is affected differentially due to the complexity inherent in legal regimes and the frequency of imposing legal penalties. Economic theory predicts that players adopt equilibrium strategies that reflect the expectation that a penalty will be incurred, but the actual occurrences of penalties, if consistent with this expectation, should not prompt an individual to modify his or her strategy. However, learning theory suggests that players' choices will be repeated in the future based on outcomes. We found that penalties triggered both increases and decreases in effort, and seemed to introduce a “shock” that increased the variability of effort. We also observed a “funnel” effect — that is. greater changes in effort closer to the imposition of penalties, and smaller changes as more periods go by without a penalty.

In this paper we report the results of an experiment designed to investigate the potential benefits of more accurate costing systems. Subjects in our experiment participated in one of four single‐person decision making settings, which varied in terms of the accuracy of costing systems (less accurate versus more accurate cost reports) and in the complexity of the economic environment (less heterogeneous versus more heterogeneous products). The costing systems provided imperfect reports that subjects could use to select forecasts of future product costs. Forecast accuracy determined the resulting payoffs for subjects. In addition to having the cost reports when making forecasts, subjects also observed the association between forecasts and actual profits for previous periods and the rank ordering of the products' relative usage of resources at each of the production processes. The results from our experiment indicate that subjects did not select forecasts based only on reported costs. Rather they updated forecasts using profit feedback and the supplemental rank information about the products' relative usage of resources. We found that profits decreased as the complexity of economic environment increased but increased with the accuracy of cost reports. The profits associated with less accurate costing systems, however, were not as low as we would have predicted had the subjects used the cost reports as their forecasts. In fact, using profit feedback, subjects were able to converge toward optimal profits even with imperfect cost information.

Nicholas Dopuch, Ronald R. King, The Impact of MAS on Auditors' Independence: An Experimental Markets Study, Journal of Accounting Research, Vol. 29, Studies on Accounting Institutions in Markets and Organizations (1991), pp. 60-98

This paper presents the results of 32 experimental markets designed to test hypotheses based on Wagenhofer's (1990) disclosure model. The model predicts the existence of multiple disclosure equilibria in cases where a manager balances the effects that disclosures can have on two sets of external agents: investors and an opponent. The experimental results support the partial-disclosure equilibrium over the full-disclosure option. Additionally, a lower level of disclosure was observed in those markets in which the discloser repeatedly interacted with information receivers. Lower disclosure reduces the level of proprietary costs which is beneficial to the information sender.

The objective of this research is to articulate a decision‐making foundation for the systems audit approach. Under this audit approach, the auditor first gains an understanding of the auditee's economic environment, strategy, and business processes and then forms expectations about its performance and financial reporting. Proponents of this audit approach argue that decision making is enhanced because the knowledge of the system allows the auditor to focus on the most important risks. However, there has not been an explicit framework to explain how systems knowledge can enhance decision making. To provide such a framework, we combine mental model theory with general systems theory to produce a hypothesis we refer to as a systems‐mediated mental model hypothesis. We test this hypothesis using experimental economics methods. We find that (1) subjects make systematic errors under the setting without an organizing framework provided by the systems information, and (2) the presence of an organizing framework results in lower reporting errors. Importantly, the organizing framework significantly enhances decision making in the settings where the environment changed. Establishing a decision‐making foundation for systems audits can provide an important building block that, in part, can contribute to the development of a more effective and efficient audit technology ‐ an important objective now when audits are facing a credibility crisis.

This paper presents the results of 16 laboratory markets designed to test the theoretical assertion that, when disclosures are credible, managers/sellers will fully disclose private information to potential investors/buyers. Sellers are predicted to disclose all information so as not to be classified as having the worst possible information. This experiment manipulated two treatments: the number of disclosure options available to the seller and the buyers' knowledge of those disclosure options. The results show that, after repeated dealings between sellers and buyers, the sellers moved toward full disclosure. Buyers adjusted their bidding strategies in response to the seller's disclosure strategy in all markets except those that had both (1) a large number of disclosure options and (2) no knowledge by buyers of the disclosure options. These results may provide some perspective on the market‐based results that show that investors do not react in a fully skeptical fashion with respect to managerial disclosures. Our results suggest that knowledge of the menu of disclosure options may increase the speed of markets adjusting to disclosures, particularly when the menu of disclosure options is large. Résumé. Les auteurs présentent les résultats de l'étude en laboratoire de seize marchés à partir desquels ils ont voulu vérifier l'affirmation théorique selon laquelle, lorsque l'information communiquée est vraisemblable, les gestionnaires‐vendeurs présentent intégralement l'information privilégiée aux investissieurs‐acheteurs potentiels. La décision des vendeurs de communiquer intégralement l'information serait motivée par leur désir de ne pas laisser supposer que l'information qu'ils possèdent est extrêmement négative. Dans le cadre de cette expérience, les auteurs ont abordé la question sous deux angles: le nombre d'options dont dispose le vendeur en matière de présentation de l'information et la connaissance de ces différentes options chez l'acheteur. Les résultats démontrent qu'après plusieurs séances de négociation entre vendeurs et acheteurs, les vendeurs consentaient à la présentation intégrale de l'information. Les acheteurs adaptaient leur stratégie d'offre en réponse à la stratégie de présentation de l'information du vendeur dans tous les marchés, à l'exception des marchés caractérisés à la fois par 1) un nombre important d'options de présentation de l'information et 2) aucune connaissance, chez les acheteurs, des options de présentation de l'information. Ces résultats pourraient ouvrir certaines perspectives en ce qui a trait aux résultats, fondés sur le marché, qui démontrent que les investisseurs ne mettent pas systématiquement en doute l'information présentée par les gestionnaires. Les résultats de l'étude laissent supposer que la connaissance des différentes options de présentation de l'information peut accélérer l'adaptation des marchés à la présentation de l'information, en particulier lorsque les options de présentation sont nombreuses.

Both theoretical and experimental research has shown that full disclosure of private information will be observed when disclosures are credible. Disclosures are generally considered to be credible when they either are subject to an antifraud rule, are ex post verifiable, or are both. However, little consideration has been given to the individual and interactive effects of these conditions. This paper presents arguments concerning the effects of antifraud rules and ex post verifiability on disclosures of private information and the reaction to those disclosures. It predicts an equilibrium of full disclosure only when an antifraud rule is in effect, independent of the presence or absence of ex post verification. Further, one adverse selection problem is posited to disappear after repeated observations, regardless of antifraud rules or ex post verifiability. These assertions are tested by 20 laboratory experiments, which, in addition, provide insight into the effect of a legal system on disclosures. The results generally support the analytical assertions. Résumé. Les recherches théoriques aussi bien qu'expérimentales ont démontré que la présentation intégrale de l'information à caractère privé est observée lorsque les renseignements fournis sont crédibles. Ces renseignements sont généralement jugés crédibles lorsqu'ils sont assujettis à une règle anti‐fraude, lorsqu'ils peuvent être verifiés ex post ou lorsqu'ils présentent ces deux caractéristiques. Jusqu'à maintenant, cependant, on s'est peu intéressé aux conséquences particulières et interactives de ces caractéristiques. Les auteurs présentent ici leur argumentation au sujet des conséquences des règles anti‐fraude et de la vérifiabilité ex post sur la présentation d'information privée et sur la réaction à la présentation de cette information. Selon eux, l'équilibre de présentation intégrale de l'information n'est atteint que dans le cas où s'applique une règle anti‐fraude, indédependamment de l'existence d'une vérification ex post. Plus encore, ils concluent à la disparition d'un problème de sélection préjudiciable après des observations répétées, peu importe les règles anti‐fraude ou la vérifiabilité ex post. La véracité de ces affirmations est mise à l'épreuve dans le cadre de 20 expériences en laboratoire qui livrent en outre certaines indications relatives à l'incidence d'un système juridique sur la présentation d'information. Les résultats viennent généralement appuyer les hypothèses d'analyse.