Francesco Vezzoli: celebrity obsession

Thesis (M.A. in Art History)--University of Oklahoma, 2011.Includes bibliographical references

Audit Committee Accounting Expertise, Analyst Following, and Market Liquidity

We study the relation between audit committee accounting expertise, analyst following, and market liquidity. Our main results indicate that analyst following increases subsequent to the appointment of an accounting expert to the audit committee. We also provide evidence that accrual quality, as opposed to audit quality or management earnings forecasts, is the channel through which accounting expertise increases analyst following and improves analyst forecast properties. We also show that audit committee accounting expertise is related to higher trading volume and lower liquidity risk, supporting incentives for greater analyst following. Our study extends prior literature by providing evidence that audit committee accounting expertise enhances firms’ information environment beyond the effects it has on financial reporting quality or analysts’ forecast properties. Our study also complements the literature on determinants of analyst following and market liquidity, both of which are related to cost of capital. Results from our study should be useful to firms seeking to enhance analyst following and market liquidity

An international effort towards developing standards for best practices in analysis, interpretation and reporting of clinical genome sequencing results in the CLARITY Challenge

There is tremendous potential for genome sequencing to improve clinical diagnosis and care once it becomes routinely accessible, but this will require formalizing research methods into clinical best practices in the areas of sequence data generation, analysis, interpretation and reporting. The CLARITY Challenge was designed to spur convergence in methods for diagnosing genetic disease starting from clinical case history and genome sequencing data. DNA samples were obtained from three families with heritable genetic disorders and genomic sequence data were donated by sequencing platform vendors. The challenge was to analyze and interpret these data with the goals of identifying disease-causing variants and reporting the findings in a clinically useful format. Participating contestant groups were solicited broadly, and an independent panel of judges evaluated their performance. RESULTS: A total of 30 international groups were engaged. The entries reveal a general convergence of practices on most elements of the analysis and interpretation process. However, even given this commonality of approach, only two groups identified the consensus candidate variants in all disease cases, demonstrating a need for consistent fine-tuning of the generally accepted methods. There was greater diversity of the final clinical report content and in the patient consenting process, demonstrating that these areas require additional exploration and standardization. CONCLUSIONS: The CLARITY Challenge provides a comprehensive assessment of current practices for using genome sequencing to diagnose and report genetic diseases. There is remarkable convergence in bioinformatic techniques, but medical interpretation and reporting are areas that require further development by many groups

31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016) : part two

Background The immunological escape of tumors represents one of the main ob- stacles to the treatment of malignancies. The blockade of PD-1 or CTLA-4 receptors represented a milestone in the history of immunotherapy. However, immune checkpoint inhibitors seem to be effective in specific cohorts of patients. It has been proposed that their efficacy relies on the presence of an immunological response. Thus, we hypothesized that disruption of the PD-L1/PD-1 axis would synergize with our oncolytic vaccine platform PeptiCRAd. Methods We used murine B16OVA in vivo tumor models and flow cytometry analysis to investigate the immunological background. Results First, we found that high-burden B16OVA tumors were refractory to combination immunotherapy. However, with a more aggressive schedule, tumors with a lower burden were more susceptible to the combination of PeptiCRAd and PD-L1 blockade. The therapy signifi- cantly increased the median survival of mice (Fig. 7). Interestingly, the reduced growth of contralaterally injected B16F10 cells sug- gested the presence of a long lasting immunological memory also against non-targeted antigens. Concerning the functional state of tumor infiltrating lymphocytes (TILs), we found that all the immune therapies would enhance the percentage of activated (PD-1pos TIM- 3neg) T lymphocytes and reduce the amount of exhausted (PD-1pos TIM-3pos) cells compared to placebo. As expected, we found that PeptiCRAd monotherapy could increase the number of antigen spe- cific CD8+ T cells compared to other treatments. However, only the combination with PD-L1 blockade could significantly increase the ra- tio between activated and exhausted pentamer positive cells (p= 0.0058), suggesting that by disrupting the PD-1/PD-L1 axis we could decrease the amount of dysfunctional antigen specific T cells. We ob- served that the anatomical location deeply influenced the state of CD4+ and CD8+ T lymphocytes. In fact, TIM-3 expression was in- creased by 2 fold on TILs compared to splenic and lymphoid T cells. In the CD8+ compartment, the expression of PD-1 on the surface seemed to be restricted to the tumor micro-environment, while CD4 + T cells had a high expression of PD-1 also in lymphoid organs. Interestingly, we found that the levels of PD-1 were significantly higher on CD8+ T cells than on CD4+ T cells into the tumor micro- environment (p < 0.0001). Conclusions In conclusion, we demonstrated that the efficacy of immune check- point inhibitors might be strongly enhanced by their combination with cancer vaccines. PeptiCRAd was able to increase the number of antigen-specific T cells and PD-L1 blockade prevented their exhaus- tion, resulting in long-lasting immunological memory and increased median survival

Decision aids and the design of incentive compensation contracts: An experimental study of self-selection and effort effects

Compensation contracts affect both the type of worker attracted to an organization and the amount of effort exerted by the worker once on the job. Prior research suggests that the design of contract incentives should consider the sensitivity of incentives to effort and the precision with which effort can be measured, and finds that the positive effects of certain contract incentives may be undermined or reversed with the introduction of a decision aid. This study suggests that automated decision aids may provide an organization the capability to design incentives that are both more sensitive to effort and more precisely measured than without the decision aid and, accordingly, tests self-selection and effort effects of alternative incentive compensation schemes in an automated decision aid environment. Agency theory and behavioral decision theory are used together to develop new contract provisions based on the availability of behavior measures from the decision aid. Expected self-selection and effort effects are developed for both traditional outcome-based compensation contracts, and the new behavior-based contracts in the presence of an expert system. A laboratory experiment is conducted with a 2x2 between subjects factorial design obtained by crossing the presence or absence of an expert system decision aid with high and low programmable tasks. In the absence of an expert system, results are consistent with prior agency research findings that lower skilled individuals tend to select fixed pay contracts while higher skilled individuals tend to select outcome-based contracts, and that performance is higher for outcome-based contracts. Additionally, the study finds that task programmability does not significantly affect contract selection. In the presence of an expert system, approximately one-fourth of the subjects select some form of the new behavior-based contracts regardless of skill or risk preference. Further, the performance of subjects with behavior-based contracts is equivalent to that of subjects with outcome-based contracts. Behavior-based contracts may provide incentives for high performance at a lower cost than outcome-based contracts

Auditor rotation and the appearance of independence: Evidence from non-professional investors

We examine the impact of audit firm versus partner rotation on non-professional investors' independence-related perceptions, extending prior research on auditor rotation and independence in fact. Arguments for mandatory audit firm rotation continue to be made by regulators and investor groups based, in part, on the idea that firm rotation will incrementally strengthen independence in appearance relative to audit partner rotation. We report the results of two experiments. The first examines 5-year audit firm versus partner rotation under relatively weak or strong audit committees. We find no statistically significant difference in beliefs about how much of an income reducing audit difference management will record, or in beliefs about auditor independence, between the two auditor rotation conditions. On the other hand, we find that non-professional investors do believe more of the audit difference will be recorded, and the auditors will be more independent, under a strong audit committee than a relatively weak audit committee. The second experiment provides further evidence on audit firm versus partner rotation by examining a setting involving a 26-year audit firm-client relationship. Again, no statistically significant differences between the two auditor rotation conditions were found. These findings suggest that compared to audit partner rotation, audit firm rotation does not strengthen independence in appearance among non-professional investors and that non-professional investors recognize the value of strong audit committees.

Board Risk Committees and Audit Pricing

Conditions leading up to and surrounding the global financial crisis prompted an increasing number of firms to create board-level risk oversight committees (RCs). The Dodd-Frank Wall Street Reform and Consumer Protection Act (U.S. House of Representatives 2010) even legislates RCs for certain large banks. Distinct from audit committees, RCs present a unique setting to extend our understanding of the relation between emerging governance mechanisms and auditing. Using a sample of 3,980 U.S.-listed banks from 2003 “2011, we find that on average, the presence of RCs is associated with higher audit fees. Our results are robust to multiple specifications, including self-selection and propensity score matched samples. For a reduced sample of 458 firms that employ an RC we also examine RC characteristics. We find RC independence and audit committee overlaps are associated with lower audit fees and RC size, relative to board size, is associated with higher audit fees. Supplemental analysis provides discussion of the potential audit environment implications of mandatory versus voluntary risk management controls