Competition in the Courtroom: When Does Expert Testimony Improve Jurors’ Decisions?

Many scholars lament the increasing complexity of jury trials and question whether the testimony of competing experts helps unsophisticated jurors to make informed decisions. In this article, we analyze experimentally the effects that the testimony of competing experts has on (1) sophisticated versus unsophisticated subjects\u27 decisions and (2) subjects\u27 deci- sions on difficult versus easy problems. Our results demonstrate that competing expert testimony, by itself, does not help unsophisticated subjects to behave as though they are sophisticated, nor does it help subjects make comparable decisions on difficult and easy problems. When we impose additional institutions (such as penalties for lying or a threat of verification) on the competing experts, we observe such dramatic improvements in unso- phisticated subjects\u27 decisions that the gap between their decisions and those of sophisti- cated subjects closes. We find similar results when the competing experts exchange reasons for why their statements may be correct. However, additional institutions and the experts\u27 exchange of reasons are less effective at closing the gap between subjects\u27 decisions on difficult versus easy problems

The Blind Leading the Blind: Who Gets Polling Information and Does it Improve Decisions?

We analyze whether and when polls help citizens to improve their decisions. Specifically, we use experiments to investigate 1) whether and when citizens are willing to obtain polls and 2) whether and when polls help citizens to make better choices than they would have made on their own. We find that citizens are more likely to obtain polls when the decisions they must make are difficult and when they are unsophisticated. Ironically, when the decisions are difficult, the pollees are also uninformed and, therefore, do not provide useful information. We also find that when polls indicate the welfare-improving choice, citizens are able to improve their decisions. However, when polls indicate a choice that will make citizens worse off, citizens make worse decisions than they would have made on their own. These results hold regardless of whether the majority in favor of one option over the other is small or large

Nothing But the Truth? Experiments on Adversarial Competition, Expert Testimony, and Decision Making

Many scholars debate whether a competition between experts in legal, political, or economic contexts elicits truthful information and, in turn, enables people to make informed decisions. Thus, we analyze experimentally the conditions under which competition between experts induces the experts to make truthful statements and enables jurors listening to these statements to improve their decisions. Our results demonstrate that, contrary to game theoretic predictions and contrary to critics of our adversarial legal system, competition induces enough truth telling to allow jurors to improve their decisions. Then, when we impose additional institutions (such as penalties for lying or the threat of verification) on the competing experts, we observe even larger improvements in the experts\u27 propensity to tell the truth and in jurors\u27 decisions. We find similar improvements when the competing experts are permitted to exchange reasons for why their statements may be correct

Addressing business agility challenges with enterprise systems

It is clear that systems agility (i.e., having a responsive IT infrastructure that can be changed quickly to meet changing business needs) has become a critical component of organizational agility. However, skeptics continue to suggest that, despite the benefits enterprise system packages provide, they are constraining choices for firms faced with agility challenges. The reason for this skepticism is that the tight integration between different parts of the business that enables many enterprise systems\u27 benefits also increases the systems\u27 complexity, and this increased complexity, say the skeptics, increases the difficulty of changing systems when business needs change. These persistent concerns motivated us to conduct a series of interviews with business and IT managers in 15 firms to identify how they addressed, in total, 57 different business agility challenges. Our analysis suggests that when the challenges involved an enterprise system, firms were able to address a high percentage of their challenges with four options that avoid the difficulties associated with changing the complex core system: capabilities already built-in to the package but not previously used, leveraging globally consistent integrated data already available, using add-on systems available on the market that easily interfaced with the existing enterprise system, and vendor provided patches that automatically updated the code. These findings have important implications for organizations with and without enterprise system architectures

Closed-loop Dynamics of In-core Thermionic Reactor Systems

Using a point model of an in-core thermionic converter, alternative schemes for providing closed loop reactor control were investigated. It was found that schemes based on variable gain power regulation buffers which use the reactor current as the control variable provide complete protection from thermionic burnout and also provide a virtually constant voltage to the user. A side benefit is that the emitter temperature transients are small-even for a complete electric load drop the emitter temperature transient is less than 100 deg K. The current regulation scheme was selected for further study with a distributed parameter model which was developed to account for variations in thermionic and heat transfer properties along the length of a cylindrical converter. It was found that even though the emitter temperature distribution is about 200 deg K along the converter length, the dynamic properties are unchanged when using the current control scheme

What Statutes Mean: Interpretive Lessons from Positive Theories of Communication and Legislation

How should judges interpret statutes? For some scholars and judges, interpreting statutes requires little more than a close examination of statutory language, with perhaps a dictionary and a few interpretive canons nearby. For others, statutory interpretation must be based upon an assessment of a statute\u27s underlying purpose, an evaluation of society\u27s current norms and values, or a normative objective, such as the law\u27s integrity. With such differences squarely framed in the literature, it is reasonable to ask whether anything of value can be added. We contend that there is

Making Talk Cheap (and Problems Easy): How Legal and Political Institutions Can Facilitate Consensus

In many legal, political, and social settings, people must reach a consensus before particular outcomes can be achieved and failing to reach a consensus may be costly. In this article, we present a theory and conduct experiments that take into account the costs associated with communicating, as well as the difficulty of the decisions that groups make. We find that when there is even a small cost (relative to the potential benefit) associated with sending information to others and/or listening, groups are much less likely to reach a consensus, primarily because they are less willing to communicate with one another. We also find that difficult problems significantly reduce group members’ willingness to communicate with one another and, therefore, hinder their ability to reach a consensus

Job and Life Attitudes of Male Executives

Despite executives\u27 important positions in organizations, their attitute have not received much research attention. In an attempt to remedy this deficiency, the present study tested a hypothesized model of executive attitudes involving job satisfaction, life satisfaction, job stress, and work-family conflict. Using data gathered from a large, representative sample of male executives (due to the small number of female executives in the study, the analyses were confined to males only), LISREL results indicated support for the overall model and the specific relationships within the model. These results are the first to simultaneously consider job and life satisfaction, job stress, and work-family conflict, and also constitute the most comprehensive evidence to date on executive attitudes. The meaning and contributions of the findings are discussed

Injectable Gelatin-Silk Fibroin Composite Hydrogels for In Situ Cell Encapsulation

Hydrogels are widely used tools for tissue engineering and regenerative medicine. Characterized as biofunctional, water-based polymer matrices with tunable mechanical properties, hydrogels have promising but limited applications in biomedical engineering, due to poor and static matrix strength. Here we plan to rectify this issue by introducing a new hydrogel made from a composite of gelatin and silk fibroin crosslinked by microbial transglutaminase (mTG) instantly and beta sheet formation gradually, respectively. This interpenetrating network (IPN) shows enhanced mechanical stiffness and strength compared to gelatin hydrogels, and is capable of encapsulating human cells with high viability demonstrated by the encapsulation of human dermal fibroblasts (hDFs). We also demonstrate that this hydrogel can encapsulate mesenchymal stem cells (MSC) as well as differentiate them into osteoblasts by dynamically stiffening the matrix over at 14-day period. These results indicate that this injectable hydrogel can be a great asset for tissue regeneration applications