SCAN: A Case-Based Reasoning Model for Generating Information System Control Recommendations

This paper describes SCAN, a case-based reasoning model for generating information system control recommendations. The purpose of the paper is to explain how a case-based reasoner may be used to support inexperienced information system auditors in evaluating controls and proposing audit recommendations. As a case-based reasoner, SCAN functions by reasoning by analogy to similar past cases. SCAN models audit experience as traces of past cases which are stored in a case knowledge base. In addition to a database of past audit cases, SCAN consists of indices for storing and retrieving cases, a similarity metric for measuring case similarity, and rules for using similar cases to generate control recommendations. SCAN uses past cases to remind the user of previous control failures, to set expectations about case features and controls, to use as a pattern against which to compare a client's controls and to help justify or explain its recommendations. SCAN's recommendations were judged to be more like those of an experienced auditor than either a student or a textbook model.     

Case-Based Reasoning: Application Techniques for Decision Support

Decision-support systems can be improved by enabling them to use past decisions to assist in making present ones. Reasoning from relevant past cases is appealing because it corresponds to some of the processes an expert uses to solve problems quickly and accurately. All this depends on an effective method of organizing cases for retrieval. This paper investigates the use of inductive networks as a means for case organization and outlines an approach to determining the desired number of cases—or assessing the reliability of a given number. Our method is demonstrated by application to decision making on corporate tax audits.     

Applying Case-Based Reasoning to the Accounting Domain

Case-Based Reasoning (CBR) is rapidly emerging as a rich and powerful artificial intelligence approach that can overcome some inherent weaknesses of traditional expert system technology. Several successful CBR systems have been developed in a variety of fields and CBR applications are beginning to emerge in accounting research and practice as well. As sophisticated and user-friendly CBR shells emerge, CBR is more likely to be used to solve complex, real-world problems. This paper provides a broad overview of case-based systems and the principles on which the field is founded. Accounting applications of case-based reasoning and future research issues are identified.     

The Bank Lending Channel: A FAVAR Analysis

We examine the bank lending channel (BLC) of monetary transmission in a factor‐augmented vector autoregression (FAVAR). A FAVAR exploits large numbers of macro‐economic indicators and allows us to consider an alternative identification of monetary shocks and analyze the lending response of banks at the aggregate and individual levels. We find that the existence of the BLC is more prevalent than previously thought using aggregated lending data, while the lending response of individual banks are driven more by specific innovations than monetary shocks. Nonetheless, the average individual bank response to a monetary shock is consistent with the existence of a BLC.     

Bank Capital and Lending Relationships

This paper investigates the mechanisms behind the matching of banks and firms in the loan market and the implications of this matching for lending relationships, bank capital, and credit provision. I find that bank‐dependent firms borrow from well‐capitalized banks, while firms with access to the bond market borrow from banks with less capital. This matching of bank‐dependent firms with stable banks smooths cyclicality in aggregate credit provision and mitigates the effects of bank shocks on the real economy.     

The Bank Lending Channel Revisited

A central proposition in research on the role of banks in the transmission mechanism is that monetary policy imparts a direct impact on deposits and that deposits act as the driving force of bank lending. This paper argues that the emphasis on policy‐induced changes in deposits is misplaced. A reformulation of the bank lending channel is proposed that works primarily through the impact of monetary policy on banks’ balance sheet strength and risk perception. Such a recasting implies, contrary to conventional wisdom, that greater reliance on market‐based funding enhances the importance of the channel.     

关系型借贷、银行竞争与中小企业融资研究述评

目前,银企关系、银行竞争对中小企业信贷融资的影响还存在争议。本文系统梳理了银企关系和银行竞争对中小企业融资影响的相关文献,从中小企业借贷可得性、成本和风险的角度,全面考察了银企关系和银行竞争的影响,同时分析了两者的相互作用。结果显示,银企关系、银行竞争会对中小企业信贷融资产生影响,且银企关系与银行竞争之间存在交互作用,但银企关系、银行竞争对中小企业融资的具体影响方向、大小存在显著的国别差异。在考察我国中小企业信贷融资过程中,需要结合宏观经济和信贷市场实际情况,区分不同理论的适用性,以期为缓解中小企业融资难题的研究和实践提供借鉴。     

Financial Distress and Bank Lending Relationships

We use a unique data set of bank loans to examine the wealth effects on lead lending banks when their borrowers suffer financial distress. We find a significant negative announcement return for the lead lending bank when a major corporate borrower announces default or bankruptcy. Banks with higher exposure to the distressed firm have larger negative announcement-period returns. The existence of a past lending relationship with the distressed firm results in larger wealth declines for the bank shareholders. Finally, financial distress also has a significant negative effect on borrower's returns.     

Modeling Foreign Bank Performance and Lending Behavior

This paper examines the profitability and commercial loan growth of foreign banks using a simultaneous‐equation framework. Maximizing behavior provides a two‐equation system in which bank profitability depends on variables related to expected returns, costs, and risks and in which loan growth is determined by risk and return variables. The model is tested to evaluate the determinants of foreign bank performace and lending behavior in the United States between 1987 and 1991. Overall the results indicate that factors such as capital strength, commercial and industrial loan growth, and assets composition were important in determining foreign banks' return‐on‐assets in the period under study. The role of capital appears to be particularly important in explaining foreign bank performance. The single significant determinant of loan growth was found to be previous period's loan growth.     

Connected Lending in Bank Lines of Credit

Journal of Financial Services Research - We find that firms usually obtain larger credit lines if their executives have common past employers or past board memberships with lenders. The effect not...     

经济政策不确定性与企业贷款成本

基于大样本微观银行信贷数据,本文研究经济政策不确定性对企业的银行贷款成本的影响。研究发现,经济政策不确定性升高导致企业的银行贷款成本增加,且使得在中小型银行贷款的企业成本增加更多。异质性分析表明,经济政策不确定性升高对受政策因素影响较大的企业如小微企业、私营企业等的银行贷款成本的影响更为明显。进一步,对企业的银行贷款违约风险的研究发现,随着经济政策不确定性升高,企业的银行贷款违约风险反而降低。这表明,经济政策不确定性升高使得银行选择风险评级更低的贷款,符合谨慎性动机。本文研究结论表明,经济政策不确定性升高时,银行“自我保险”动机的增强使得企业的银行贷款成本增加,这在中小型银行中表现得更加明显,同时也更多地转嫁给中小企业。本文为经济政策不确定性对企业投资、宏观经济波动等的研究提供了微观解释机制,并揭示了政府经济政策的一致性、稳定性对维护金融稳定的重要作用。     

银行信贷与房地产市场的非理性

房产泡沫的形成可以用传统的套利机制和市场有效性假说来解释,本文从房产市场供求均衡的前提推导出银行过于乐观地对房产部门提供资金是推高房价的重要因素,并从银行资产组合配置的角度分析了影响银行对房产部门信贷的主要因素。除了房贷资产的预期收益、房贷违约率等因素,最重要的因素是银行的灾难近视和市场主体面临的不当激励。     

Bank Forward Lending in Alternative Funding Environments

This paper examines the effects of loan commitments on bank lending behavior in both deposit-funding and liability management environments. Assuming that the bank lends exclusively under commitments and that the number of commitments exercised is uncertain, the bank must choose its supply of commitments. Given this choice, the bank becomes a passive lender to commitment holders. Our focus on forward credit markets sheds new light on the private bankers' assertion that they do not directly determine their level of lending, but merely “accommodate” the credit needs of their customers. Similarly, the central banker's claimed inability to control monetary aggregates in the short-run becomes understandable in a new context. It is shown that the advent of liability management will reduce the volume of loan commitments and the expected size of the bank and of the banking system. It is also shown that increased uncertainty regarding borrower takedown behavior diminishes the volume of commitments, expected bank and banking system size.     

Financial Turmoil, Failed Bank Acquisitions, and Bank Business Lending Behavior

This paper utilizes bank Call Report and FDIC receivership data from 1987 to 1991 to examine the impact of a failed bank acquisition on the growth rate of commercial and industrial (C&I) lending at the acquiring institutions. Using a two-stage least squares model with fixed effects, we find that banks acquiring a failed bank's assets experience a significant decline in both the growth rate of C&I lending and their capital asset ratios in the period of the acquisition. The results support anecdotal evidence that failed-bank borrowers may experience difficulties in accessing credit once their bank fails and underscores the importance of bank-borrower relationships in C&I lending. Finally, the paper provides an alternative explanation for banks' stagnant or declining business lending activity during this period of financial turmoil.     

Robbing the Bank: Non-recourse Lending and Asset Prices

The Journal of Real Estate Finance and Economics - We investigate the market prices of assets in fixed supply whose purchase is typically financed through non-recourse loans. The largest and most...     

Bank Lending Standards and Access to Lines of Credit

This paper examines how changes in bank lending standards are related to the availability of bank lines of credit for private and comparable public firms. Overall, we find that access to lines of credit is more contingent on bank lending standards for private than for public firms. The impact of bank lending standards is however asymmetric: while private firms are less likely than public firms to gain access to new lines when credit market conditions are tight, we find no difference between public and private firms in terms of their use or retention of pre‐existing lines. We also find that private firms without lines of credit use more trade credit when bank lending standards are tight, which is suggestive of a supply effect. Overall, the evidence suggests that “credit crunches” are likely to have a disproportionate impact on private firms. However, pre‐existing banking relationships appear to mitigate the impact of these contractions on private firms.