Reexamining the uncertain information hypothesis on the S&P 500 Index and SPDRs

This paper examines the uncertain information hypothesis on one major index and its corresponding exchange-traded fund: the S&P 500 Index and SPDRs in the pre-SPDRs (01/63–12/93) and post-SPDRs (01/94–12/03) periods. Two strategies are used to measure the economic significance of the uncertain information hypothesis. Overall, we present evidence confirming the uncertain information hypothesis in the post-SPDRs period. However, we fail to convert the statistically significant gains observed into economic gains under a conservative approach. In addition, the degree of difference in the volatilities of the 5-day post-event returns (in both the S&P 500 and the SPDR) among the three subgroups diminishes in the post-SPDR period. Hence, we conclude that the market is in fact short-term efficient in a more realistic setting.     

Entangled decisions: Knowledge interdependencies and terminations of patented inventions in the pharmaceutical industry

Research Summary : This study explores the role of knowledge interdependencies on the termination of patented inventions. Termination refers to the abandonment of inventive efforts that are no longer deemed promising. We argue that high interdependencies between an inventive effort and the other inventions in the same research program will increase the cognitive burden on managers and decrease the likelihood of termination. Further, in the presence of interdependencies, managers are likely to rely on heuristics for termination decisions. We focus on two such heuristics: interdependencies of an invention with those in other research programs and the level of external competition in the research program. We test our hypotheses with longitudinal data on patent terminations through non‐payment of renewal fees in the pharmaceutical industry. Managerial Summary : Effective management of innovation portfolios requires termination of opportunities that are no longer promising. Most current tools on termination assume that opportunities to be evaluated are independent from one another. This assumption may limit their usefulness in increasingly complex research domains, such as pharmaceutical R&D. In this study, we investigate how interdependencies among inventions influence firms' tendency to terminate those inventions. Our results on patent terminations show that a patent that is more interdependent with other patents in the same research program is less likely to be terminated. This suggests that managers may have difficulty in evaluating the inherent value of interdependent opportunities. This result is stronger when the patent is less interdependent with those in other research programs or in a more competitive area.     

Where the twain shall meet? A study of best practices to resolve retailer–supplier acrimony in post-audit recovery of trade promotion dollars

Abstract

Deductions and claims to recover trade promotions incentives through post-audit of previous years’ transactions is a highly contentious but prevalent practice in the industry. Retailers, given their low margins of operations, are motivated to seek every opportunity to obtain extra incentives from suppliers to boost their profits. They often hire third-party post-auditors to scrub through all their transactions and “deal sheets” or supplier agreements to search for potential unclaimed trade promotion dollars promised by suppliers in prior years. Third party auditors have an incentive to also make dubious claims as they are compensated on contingency fees of a percent of claims recovered. Such practices lead to acrimony between retailers and suppliers. They often have differing viewpoints and opinions about the contextual terms of the trade promotion deals itself leading to an opinion “chasm” that is sometimes difficult to bridge. The resulting tension among retailers and suppliers, along with regulatory compliance under the Sarbanes–Oxley Act, and prevailing questions on the role and practices of post-auditors, motivated this study. Conducted over a 24-month period with extensive collaboration and research discussions between the study team and responsible managers from leading US retail and manufacturing companies. The distinctive mix of academic rigor and practitioner relevance was the hallmark of this study that involved three retail summits conducted with industry participants to discuss the research method and its resultant findings. Evidence suggests that transactional discrepancies will continue to happen, despite technological advances, because of large volume of transactions and multiplicity of complex trade promotion methods in vogue in the retail world. So, as long as there are claim opportunities, post-audit recovery practices will continue, confounding the darker side of the retailer–supplier relationship. Through a multi-stage and multi-level study, and data from a variety of sources, we identify best practices in post-audit recovery and suggest ways to reduce associated conflict and improve relationship satisfaction.     

CEO Ownership and Discretionary Investments

Abstract:  This study investigates empirically the relationship between CEO ownership and discretionary investments such as R&D and capital expenditures. We assert that the under-investment problem is high for R&D-intensive projects, while the over-investment problem is high for capital expenditures because of differences in risk between the two types of investments. Building on the linkages between investments and investment-related agency problems, we hypothesize that the relationship between CEO ownership and investments depends on whether increasing ownership mitigates or exacerbates the under- or over-investment problem. We find a non-linear association between CEO stock ownership and R&D investments; R&D investments increase and then decline across increasing levels of ownership. Further, we find that R&D investments and CEO stock options are positively associated at high levels of option holdings. In contrast, capital expenditures do not vary with CEO ownership (stock or options). Finally, consistent with our underlying assumption, we find that the influence of R&D investments on future firm risk is significantly larger than that of capital expenditures. Our findings indicate that managerial risk aversion affects discretionary investments.     

Deal Size,Bid Premium,and Gains in Bank Mergers: The Impact of Managerial Motivations

Do mergers with greater target relative to acquirer size create more value than mergers with smaller relative sized targets? Do larger bid amounts represent wealth transfers from acquirers or do they signal greater expected merger gains? We hypothesize that the relations among aggregate merger gains, relative size, and bid premiums are asymmetric across mergers made by value‐enhancing versus value‐reducing managers. We use a large sample of bank mergers to test these predictions and find that the value response to different explanatory variables is asymmetric. Our findings provide new insights into how the market values merger bids.     

Medical resource utilization and costs for total hip arthroplasty: benchmarking an anterior approach technique in the Medicare population

Aims: The anterior approach (AA) for total hip arthroplasty (THA) is associated with more rapid recovery when compared to traditional approaches. The purpose of this study was to benchmark healthcare resource utilization and costs for patients with THA via AA relative to matched patients.

Materials and methods: This study queried Medicare claims data (2012–2014) to identify patients who received THA via an AA from experienced surgeons, and matched these patients to a control cohort (all THA approaches). Direct and propensity-score matching were employed to maximize similarity between patients and hospitals in the two cohorts. Hospital length of stay (LOS), the proportion of patients discharged to home or home health, and post-acute claim payments during the 90-day episode were assessed. Generalized estimating equations were applied to control for imbalances between the cohorts and clustering of outcomes within hospitals.

Results: A total of 1,794 patients were included after patient matching. Patients who received AA had significantly lower mean hospital LOS vs patients in the control group (2.06?±?1.36 vs 2.98?±?1.58 days, p?<?.0001). The adjusted proportion of patients discharged to home was nearly 20 percentage points higher in the AA cohort vs the control cohort (87.3% vs 68.7%, p?<?.0001). Post-acute claim payments for AA patients were nearly 50% lower than those for control patients ($4,139 vs $7,465, p?<?.0001).

Conclusion: AA patients had significantly lower post-acute care resource use when compared to control patients. Further research is warranted to evaluate the cost effectiveness of AA among surgeons of varying experience levels.     

Corporate Governance and Business Ethics

"It is this distancing of personal relationships, combined with their replacement by written contractual terms and conditions, which make the discussion of ethics within a corporate institutionalised context highly limited and problematic.' The challenge is to find means of personalising modern corporations so as to encourage ethical behaviour. Atul K. Shah PhD (Econ) ACA gained his doctorate from the London School of Economics and is Lecturer in the Department of Accounting and Financial Management, at the University of Essex, Wivenhoe Park, Colchester CO4 3SQ; e-mail ashah@essex.ac.uk . This article was conceived while he was Visiting Assistant Professor at the College of Business, University of Maryland, USA. The author wishes to thank Dan Ostas, Lee Preston and Stephen Loeb for helpful comments on earlier drafts.     

Reviews

“THE RURAL ECONOMY” M. Healey and B. llbery (Eds), 1985: The Industrialization of the Countryside Norwich: Geo Books, £32.50.

P. Lowe, G. Cox, M. MacEwen, T. O'Riordan, M. Winter, 1986: Countryside Conflicts. The Politics of Farming, Forestry and Conservation.

Aldershot: Gower Publishing Company, £19.50 hardback, £8.95 paper.

E. Stern and J. Turbin, 1986: Youth Employment and Unemployment in Rural England. Report of a One Year Pilot Study in Four Rural Areas for the Development Commission Development Commission/Tavistock Institute of Human Relations.

“GLOBAL RESTRUCTURING, LOCAL RESPONSE?” Philip Cook (Ed), 1986: Global Restructuring, Local Response. London: Economic and Social Research Council £10.00.

“LOCAL ECONOMIC DEVELOPMENT” Cordle, P., 1985: Employment and Industrial Development-Local Authority Initiatives. CIPFA, £5.00. V. Hausner (Ed) 1986: Critical Issues in Urban Economic Development, Volume II. Oxford: Clarendon Press, £22.50

“CRISIS IN THE INDUSTRIAL HEARTLAND” Spencer, K., Taylor, A., Smith, B., Mawson, J., Flynn N. and Batley, R., 1986: Crisis in the Industrial Heartland: A Study of the West Midlands. Oxford University Press, £7.95.

“BLACK POLITICS AND URBAN CRISIS” Brian D. Jacobs, 1986: Black politics and urban crisis in Britain. Cambridge: Cambridge University Press £25.00 Hardback.

“UNEMPLOYMENT AND LABOUR MARKET POLICIES” Hart, P. E. (Ed), 1986: Unemployment and Labour Market Policies Aldershot: Gower, 1950     

The impact of global and local cohesion on innovation in the pharmaceutical industry

In this paper, we examine how the configuration of intraorganizational networks, and in particular, cohesion among members of an organization, influences organizations' innovative output. We argue that the cohesion among R&D scientists could be at a local level or a global level, and that local and global cohesion may have different impacts on firms' innovation performance. We test our hypotheses by examining the structure of the R&D collaboration networks within firms that operated in the pharmaceutical industry between 1981 and 1989, and their innovative outcomes—patents that led to new product launches. We find that local cohesion has a positive impact on the innovative performance of a firm, and global cohesion has a negative impact. Copyright © 2011 John Wiley & Sons, Ltd.