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Field experiments have raised important issues of interpretation of bargaining behavior. There is evidence that bargaining behavior appears to vary across groups of populations, such as nationality, ethnicity and sex. Differences have been observed with respect to initial behavior and with respect to the adjustment pattern over time. Often, such behavioral differences are referred to as cultural, although the delineation of the cultural group has been confined to one or other observable characteristic in isolation. We show that this way of characterizing cultural differences is overly simplistic: at best, it leads to unreliable claims; at worst, it leads to erroneous conclusions. We reconsider the evidence provided by previous experiments using ultimatum game rules, and undertake new experiments that expand the controls for demographics. The lesson from our demonstration is that the task of designing experiments for the field offers many challenges if one wants to define and control for cultural impacts, but that field experiments also offer potential for providing new insights into these issues.

If we are to examine the role of “controls” in different experimental settings, it is appropriate that the word be defined carefully. The Oxford English Dictionary (Second Edition) defines the verb “control” in the following manner: “To exercise restraint or direction upon the free action of; to hold sway over, exercise power or authority over; to dominate, command.” So the word means something more active and interventionist than is suggested by it’s colloquial clinical usage. Control can include such mundane things as ensuring sterile equipment in a chemistry lab, to restrain the free flow of germs and unwanted particles that might contaminate some test.

Having described the list of suggested experiments for Engineering Science S.1 and S.2 in his last two articles, Mr Easton now considers the experiments for the third year Applied Mechanics course. Attention is given to the sequence in which the experiments are performed and to correlation with other teaching.

This study describes a series of experiments investigating the upper hot layer temperature profile in a confined space under different ventilation conditions for porosity-controlled wood crib fires for pre-flashover conditions.

Full-scale compartment (4 m × 4 m × 4 m) experiments were carried out for four-door openings, i.e. 100%, 75%, 50% and 25% of the total vent area (2 m × 1 m) with the wood crib as a fuel load. The temperature of the upper hot smoke layers of the compartment was recorded with the help of four layers of thermocouples for varying vent areas.

The effect of ventilation on the properties, i.e. mass loss rate, enclosure temperature, heat release rate and carbon monoxide (CO) gas concentration, has been measured and analyzed. The effect of ventilation on heat flux and flame temperature has also been studied. Compartment gas temperature has been examined by five wood crib burning stages: Ignition, growth, steady burning, recess and collapse.

Findings demonstrate that the influence of vent openings varies for the burning parameters and upper layer temperature of the compartment. The current results are beneficial in analyzing thermal risks concerning compartment fire and fire safety engineering projects.

University students often enter physical laboratory sessions with minimal knowledge of the experiments to be conducted and little or no understanding of the underlying concepts that govern the investigations. As a result, lab time is used inefficiently; motivated students lose interest and routine procedures are followed with minimal learning. The authors have developed a set of multimedia modules meant to enhance, not replace, the technical laboratory experience. The modules are akin to well‐conceived laboratory manuals applying multimedia tools, such as digital images and video clips, to better prepare the students for upcoming laboratory sessions. The modules are accessible through the Internet and include mechanisms for exchanging information.

The purpose of this article is to explore the ability of a novel psychological theory of how people make decisions, narrative‐based decision theory, to help explain people's decisions about whether to continue investment in a research and development (R&D) project (R&D progress decisions).

The paper applies the new theory to an empirical finding of existing research on R&D progress decisions; the finding that instruction in the sunk cost principle seems to mitigate the sunk cost effect in R&D progress decision‐making.

By interpreting the empirical finding in terms of narrative‐based decision theory, the paper is able to clarify and extend an earlier explanation for the empirical finding. More specifically, by drawing on narrative‐based decision theory the paper is able to provide a more detailed explanation of how the predictor variable (sunk cost) and the moderator variable (instruction in the sunk cost principle) may exert an influence.

Based on the result of the exploration, the authors call for further investigations into narrative‐based decision theory's value in explaining R&D progress decisions, and other management decisions.

Furthermore, the authors call for investigations into how narrative‐based decision theory may help decision‐makers in improving the quality of R&D progress decisions.

Narrative‐based decision theory is a recent theory from the field of naturalistic decision‐making. To the authors' knowledge, this is the first article that, by using an example, illustrates how the theory may help in explaining the findings of empirical research on management decisions.

This study aims to examine the nonidentical impacts of identical panel information that discloses cosmetic ingredients by their English (i.e. low jargon; e.g. vitamin E) versus scientific names (i.e. high jargon; tocopherol instead) presented in short versus crowded panel on young consumers’ confidence in processing ingredients information and product judgements. In the same context, this study also explores the effects of declarative aids provided within the ingredients panel.

This study conducted four experiments by using a 2 (jargon: high, low) × 2 (ingredients list: short, long) between-subjects analysis of variance design.

Young consumers’ processing-confidence and product evaluations increase (decrease) when the panel is brief (crowded) and presents cosmetic ingredients in low (high) jargon (Experiments 1, 2). However, when it discloses a factual aid [i.e. ingredient functions; e.g. tocopherol (antioxidant)], confidence in processing even the high-jargon information, as well as product judgements, increases irrespective of the panel’s length (Experiment 3). Moreover, a fictitious aid (e.g. dryness-fighting “atomic robots”) stimulates the same effect and bolsters processing confidence and product evaluations irrespective of both jargon and panel’s length (Experiment 4).

Despite their heavy use of over-the-counter beauty/cosmetic products, little do we know how young consumers consult and use on-pack ingredients information provided in one format versus the other. To the best of the author’s knowledge, this study is the first experimental work investigating the cosmetics-consuming youth’s reactions to panel format and aids to processing.

In this paper, we present a critical survey of experiments on political clientelism and vote-buying. We claim that through randomization and control, field experiments represent an important tool for answering causal questions, whereas list experiments provide useful methods that improve the hard task of measuring clientelism. We show that existing experimental research gives answers to the questions of why clientelism is effective for getting votes and winning elections, who relies more on this strategy – incumbents or challengers – how much clientelism takes place, and who tend to be the favorite targets of clientelistic politicians. The relationship between clientelism and other illicit strategies for getting votes, such as electoral violence and fraud, has also been analyzed through experimental interventions. Experiments have also studied mechanisms and policies for overcoming clientelism. Finally, we show that external validity is a major source of concern that affects this burgeoning literature.

The creativity-based facilitation effect, well documented by previous research, shows that creative advertisements (ads) are more memorable than regular (or less creative) ads, that is, creativity facilitates memory. This current research aims to extend our understanding by investigating the impact of creativity on regular ads and competitive advertising. It examines whether creative ads impair the memorability of regular ads to determine whether a “creativity-based impairment effect” exists.

Three experiments were conducted. Experiment 1 tested creativity-based impairment effects in brand recall. Experiment 2 replicated and validated the impairment effect in recall, using a different presentation order of ads. In Experiment 3, effects of creative ads on competing vs non-competing brands were examined.

Results found that creative ads impaired the brand recall of regular ads, creative ads impaired the recall of competing brands more than non-competing brands and creative ads were recalled earlier in top-of-mind recall positions.

Future research may look at whether different memory measures (e.g. recognition), different proportions of creative ads, and ads of familiar vs unfamiliar brands produce differential impairment effects.

One suggestion from this research could be to not only copy-test your own brand’s advertising, but also test the advertising of other brands so that the target ad’s relative levels of creativity can be assessed before media buying. As a result of this testing, when the brand identifies any potential impairment effects, the identified creative ads could then be tracked in terms of media placement, providing a guide of where “not to schedule” advertising.

This research makes an important theoretical contribution as the first to explore impairment effects in the context of creative advertising. In doing so, it offers important managerial insights for regular and competitive advertising.

This chapter examines the external validity of lab experiments on corruption by evaluating the extent to which experimental results are robust to the degree of field context included in the experimental design. To do so, we follow Harrison and List (2004) and partition corruption experiments into four classes depending on their field context. A comparison of the results obtained within each class reveals that similar treatment effects tend to emerge. Although a definitive answer to the external validity question has yet to be provided, these preliminary results provide some support to the external validity of lab experiments on corruption.