A rejoinder to commentaries on “Why DCF capital budgeting is bad for business and why business schools should stop teaching it”

This paper examines the effects of exposing accounting graduate students to professional ethics. First, a method of instruction that encourages students to consider the ethical implications of business decisions was developed. This instruction included exposure to Kohlberg's theory of moral development, study of professional codes of ethics, and extensive use of written and video ethics cases. Next, instructional effectiveness was assessed through a pre-post-test with control group design. An accounting-specific test instrument was developed and validated. This instrument contains decision scenarios designed to elicit and identify students' stages of ethical reasoning, Test results revealed that students receiving ethics instruction demonstrated gains in ethical reasoning within the decision context. Appropriately designed ethics modules can thus foster consisitent consideration of ethical issues in decision making.     

A Temporal Model of Vertical Relationships

Purpose: The authors developed a model framework for buyer–supplier relationships and used it to extend theory in 4 areas: (a) maintenance of long-term relationships; (b) conversion of relationships from adversarial to cooperative; (c) changes in relationships over their lives; and (d) levels of commitment and trust between partners.

Methodology/approach: The authors analyzed existing research on buyer–seller relationships and theoretical concepts in various disciplines to develop a 3-stage temporal relationship model consisting of pre-deal (t–1), deal enactment (t), and deal continuation (t+1) stages. From the model and existing research, the authors drew propositions for relationships in the areas of buyer and seller power, several forms of commitment and trust, intellectual capital, and financial performance.

Findings: Briefly, the authors proposed that (a) at the pre-deal stage, increased buyer power may instigate supplier input commitment or vice versa; (b) at deal enactment, both parties may commit to a written contract and build contractual trust through a low degree of relational commitment; and (c) in the deal continuation stage, contractual trust, and attitudinal commitment of one of the parties is likely to foster attitudinal commitment in the other party. The authors found that buyer's and supplier's total commitment fosters goodwill trust and helps build intellectual capital and financial performance, and that the weaker party in the relationship likely gains more from the partnership than the stronger party.

Research implications: In addition to existing research, the authors used several actual situations to provide support for our propositions. However, more research should be done in all areas to additionally confirm our propositions and otherwise add to theory development.

Practical implications: By looking at buyer–seller relationships in three stages, the authors developed several implications for both parties. These included long-term results of short-term actions, importance of industry factors on buyer and seller commitment, and the role of commitment in determining whether long-term relationships are developed.

Originality/value/contribution: The authors extended and coordinated existing theory by consolidating the implications of previous research into a cohesive buyer–supplier relationship model. This model should enable both researchers and managers to better comprehend the dynamics of vertical relationships with a multi-dimensional, reciprocal approach. The results should also provide managers an additional tool to gauge and forecast the fate of a relationship by analyzing levels of trust and commitment as the relationship progresses.     

A systematic approach to multi-period stress testing of portfolio credit risk

We propose a new method for analysing multi-period stress scenarios for portfolio credit risk more systematically than in current macro stress tests. The plausibility of a scenario is quantified by its distance from an average scenario. For a given level of plausibility, we search systematically for the most adverse scenario. This ensures that no plausible scenario will be missed. We show how this method can be applied to some models already in use by practitioners. While worst case search requires numerical optimisation we show that we can work with reasonably good linear approximations to the portfolio loss function. This makes systematic multi-period stress testing computationally efficient and easy to implement. Applying our approach to data from the Spanish loan register we show that, compared to standard stress test procedures, our method identifies more harmful scenarios that are equally plausible.     

Impact of Horizontal Mergers on Research & Development and Patenting: Evidence from Merger Challenges in the U.S.

This paper contributes further empirical evidence on the effects of mergers on innovation using company level data. Evidence on this issue has implications for the relationship between innovation and market concentration. Our departure from previous work is that we focus on a sample of horizontal mergers whose market concentration impacts were flagged by U.S. antitrust authorities as potentially posing a problem for antitrust law compliance. We employ propensity score matching and difference-in-differences estimation to compare the innovation activities of challenged and non-challenged merger firms to a control group of non-merged firms. We use R&D, patent grants, and citation-weighted patent grants to measure the innovation activities of firms before and after a merger. Our results indicate that the post-merger innovation outcomes of firms whose mergers were challenged are lower than they would have been had the firms not merged. But for non-challenged mergers, or mergers that do not raise concerns about market concentration, post-merger innovation outcomes are not significantly different from what they would have been without a merger.     

Proposal for two model undergraduate curricula in entrepreneurship

This paper takes three important preliminary steps towards the development of undergraduate curricula in entrepreneurship. First, it provides one of the first analyses comparing the entrepreneurship education standards proposed by the Consortium for Entrepreneurship Education and the European Commission’s Education and Training in Entrepreneurship initiative. Next, it presents an analysis of results of a workshop of entrepreneurship educators regarding development of an undergraduate entrepreneurship standard for business schools. With these two elements in place, the paper makes recommendations for model undergraduate entrepreneurship curricula for majors and concentrations, and concludes with a discussion of the issues in developing and implementing model curricula in a manner consistent with emerging standards in US business schools.     

The British Wine Drinker and US Regulation

Government regulators of a wide range of products often act in ignorance of its effects, good or bad. Three American economists assess the consequences of US federal regulation of the wine industry and point to the restriction of choice this has imposed on the British wine drinker.     

The importance of ethics to job performance: An empirical investigation of managers' perceptions

This study probed a crucial assumption underlying much of the ethics theory and research: do managers perceive ethical behavior to be an important personal job requirement? A large sample of managers from a cross-section of industries and job functions indicated that, compared to other job duties, certain ethical behaviors were moderate to somewhat major parts of their jobs. Some noteworthy differences by industry, organization size, tenure and job function were also found. These findings underscore the importance of ethics for business education. They also have implications for manager selection, training, and development by organizations.