The paper evaluates the performance of several recently proposed tests for structural breaks in the conditional variance dynamics of asset returns. The tests apply to the class of ARCH and SV type processes as well as data‐driven volatility estimators using high‐frequency data.
We propose a class of two factor dynamic models for duration data and related risk analysis in finance and insurance. Empirical findings suggest that the conditional mean and (under) overdispersion of times elapsed between stock trades feature various patterns of temporal dependence.
This paper investigates the extent to which the expiration of a temporary tax law makes corporate earnings harder to predict and understand. Examining evidence from eight separate expirations of the R&D tax credit, I find that analysts’ forecast errors and abnormal volume increase surrounding quarterly earnings announcements for firms affected by the R&D tax credit.
The Nov. 5 session gave attendees insights into recent developments in AI and machine learning from world-renowned leaders in the field.
People differ greatly in their financial risk taking behaviour. This heterogeneity has been associated with differences in brain activity, but only in laboratory settings using constrained behaviours. However, it is important to understand how these measures transfer to real life conditions, because the willingness to invest in riskier assets has a direct and considerable effect on long-term wealth accumulation.
I investigate the exit outcomes of start-ups backed by government VCs (GVCs) and private VCs (PVCs), using a sample of 8,106 start-ups in China funded by VCs between 1991 and 2013 and exit information updated in 2018. I find that start-ups backed by GVCs are less likely to exit through domestic Initial Public Offerings (IPOs), oversea IPOs, and M&As. GVC backed start-ups are also less likely to list on the intermediate public market before companies go to IPOs.
Across the globe, every workday people commute an average of 38 minutes each way, yet surprisingly little research has examined the implications of this daily routine for work-related outcomes. Integrating theories of boundary work, self-control, and work-family conflict, we propose that the commute to work serves as a liminal role transition between home and work roles, prompting employees to engage in boundary management strategies.
Does practicing corporate social responsibility (CSR) bestow any benefits on how a firm is perceived by the public?
Arabs represent a major cultural group, yet one that is relatively neglected in cultural psychology. We hypothesized that Arab culture is characterized by a unique form of interdependence that is self-assertive. Arab cultural identity emerged historically in regions with harsh ecological and climatic environments, in which it was necessary to protect the survival of tribal groups.
The effectiveness of cancer screening and adherence to cancer screening guidelines can be inhibited by long wait times for screening appointments. We develop a queueing network model of screening for a disease within a population of patients with imperfect adherence to screening guidelines to characterize the relationship between the screening request frequency rate and the wait time for screens. We first use our model to derive the capacity needed by a given system or the population size a given system can serve to guarantee a certain service level.
Despite recognizing the importance of events, researchers have rarely explored the influence of broader societal events on employee experiences and behaviors at work. We integrate perspectives on events and social identities to develop a cross-level theoretical model of the spillover effects of mega-threats, which we define as negative, large-scale, diversity-related episodes that receive significant media attention.
Although the power held by the marketing department can determine key organizational outcomes, including firm performance, this power seemingly has been decreasing. To address this apparent disconnect, the authors propose that the board of directors is a critical but overlooked antecedent of marketing department power (MDP).
After being generated, a new idea is rarely perfect but must be clarified, improved, and developed in more detail. Unfortunately, idea elaboration and creativity do not always come together: many new ideas become less creative when elaborated. This research examines who elaborates new ideas more creatively.
Abby Staker (BSBA '20) reflects on her journey writing a senior thesis as part of the Kenan Scholars program.
Time series regression analysis relies on the heteroskedasticity- and auto-correlation-consistent (HAC) estimation of the asymptotic variance to conduct proper inference. This paper develops such inferential methods for high-dimensional time series regressions.
We propose a method for decomposing private fund portfolio performance into effects from timing, strategy selection, geographic focus, sizing of fund allocation, and fund selection attributes.
The AI transformation has yet to happen, prompting uncertainty about potential impacts on the skills gap and the nature of work. Recognizing this will help us develop strategies for mitigating potential risks to workers, firms and the economy.