A review of national policies and programs to prevent unintentional injuries in the Americas

Injuries are a global public health problem, with injury mortality increasing in many regions. We describe a survey of injury policies and programs in 23 countries in the Americas. Most countries surveyed (87%) perceived unintentional injuries to be a significant public health problem. When asked about actual policy agendas, however, just one-fourth (26%) of the countries ranked unintentional injuries among policy makers’ top five concerns. Approximately half of the countries reported having a national injury prevention strategy, injury prevention coordinator, or consultative group. Virtually all countries with national strategies and consultative groups had established them in the 1990s, suggesting that concern about injuries is both recent and growing. Three-fourths (74%) reported that their country had a surveillance system to monitor injury-related mortality and, to a lesser extent, morbidity. The study’s results suggest that most policies and programs for the prevention and control of unintentional injuries have been developed in the past 10 years, and primarily address motor vehicle injuries. It is essential that current efforts be both broadened and strengthened so that the societal burden of unintentional injuries in the Americas can be reduced.     

What is professional attire today? A conjoint analysis of personal presentation attributes

Personal presentation attributes have long been understood to affect perceptions of competence and capabilities. To that end, this study investigates seven attributes associated with favorable interview presentation, including overall physical attractiveness, neatness and grooming, clothing color, conservative versus trendy attire, professional versus casual attire, and body modification (including tattoos and piercings). Participants (n = 108), including students, faculty, and hospitality industry professionals, sorted an orthogonal array of 16 full-color, laminated cards that contained photos so that respondents could see levels of clothing color, clothing conservativeness, and degree of professional attire. The remaining attributes and their corresponding levels were shown on respective analog indicators. The conjoint analysis results indicate that grooming and professional attire are the most important attributes in shaping favorable perceptions. Furthermore, faculty perceived conservative clothing to be better while students and industry professionals indicated that trendy clothing creates a more favorable presentation on the part of a job candidate.     

Correcting for bias in retrospective data

When panel data are not available, retrospective data are used in the estimation of dynamic choice models. However, retrospective data are not reliable. Previous studies of voting choices, for example, have shown that respondents misreport their past choices in order to appear more consistent with their current choice. Such retrospective bias leads to inconsistent estimates, especially when there is state dependence in choices. Specifically, observed persistence in retrospective data may be due to (a) true state dependence, (b) unobserved heterogeneity, and (c) retrospective bias in reporting previous choices. Whereas Heckman in his 1981 study deals with (a) and (b), we introduce a method to estimate true state dependence while accounting for both unobserved heterogeneity and retrospective reporting bias. Our method is based on modeling the reporting behavior and integrating it into the estimation. The identification strategy is based on the correlation between the reported previous choices and current exogenous variables. Using data on Israeli voters, we find that the probability that a respondent whose vote intention in 1991 differed from his or her past voting choices would lie about their past choices is 0.23. Copyright © 2007 John Wiley & Sons, Ltd.     

The impact of vertical integration on the wage bargain: new evidence

This paper considers the impact of vertical integration on the bargaining power relationship between employers and workers. We argue that vertical integration may have either a positive or a negative effect on the employer's position. The relationship between vertical integration of the firm and wages remains, therefore, an empirical question which this paper sets out to resolve. We do this using regression analysis and by employing a new measure of vertical integration. Our results suggest that contrary to the evidence of some previous studies, vertical integration can enhance employer bargaining power.     

Climate for Scandal: Corporate Environments that Contribute to Accounting Fraud

We examine the governance characteristics, earnings quality, growth rates, dividend policy, and compensation structure of 97 firms recently under investigation by the Securities and Exchange Commission (SEC) for accounting fraud. Our results show that the corporate environment most likely to lead to an accounting scandal manifests significant growth and accounting practices that are already pushing the envelope of earnings smoothing. Firms operating in this environment seem more likely to tip over the edge into fraud if there are fewer outsiders on the audit committee and outside directors appear overcommitted.     

On the Hausdorff dimension of exceptional random sets generated by multivariate spacings

We consider multivariate spacings blocks in the usual sense (refer to Deheuvels (Z Wahrsch Verw Gebiete 64:411–424, 1983)). We consider the sets of exceptional points in the neighborhood of which such spacings are, infinitely often, unusually large. Our main result, in the spirit of Hawkes (Math Proc Camb Phil Soc 293–303, 1981), shows that these sets constitute random fractals, whose Hausdorff dimensions are explicitly evaluated.     

Early internet IPOs versus subsequent entrants

This paper examines whether investors in early Internet IPOs earned superior returns to those who invested in later entrants. We document three differences between early public firms in a new Internet technology and their followers: underpricing, operating characteristics at the IPO, and stock price performance after the IPO. We find that there is value in going public relatively early in a new Internet technology. Specifically, long-term returns are significantly higher for the early entrants. We also find evidence, consistent with previous studies that examine hot IPO markets, that the early public firms have better operating characteristics at the IPO than later entrants.     

Retirement and transition phenomena in the family purchase process

Research is needed on the family purchase process of retirement‐age couples, because 78 million baby boomers are rapidly approaching retirement age. Both boomers and the retirement‐age couples in this study present special opportunities to marketers through new roles adopted in retirement. This study reports on perceptions of family purchase process participation among retirement‐age couples. Results indicate that transition retirees' family purchase process participation differs from that of post‐transition retirees. This finding has managerial implications for marketers wishing to serve desirable segments of current and future retirement‐age consumers. © 2007 Wiley Periodicals, Inc.     

Short-run fluctuations in fertility and mortality in pre-industrial Sweden

This paper describes and interprets annual Swedish data from 1750 to 1869 on weather, harvests, real wages, birth rates, and death rates using vector autogression. Impulses due to unexplained increases in wealth, whether this occurred through increased real wages, improved agricultural yields, or warmer winters, led in the short run to increased fertility and decreased infant and non-infant mortality, and hence to increased rates of population growth. Unexplained or unanticipated fluctuations in infant mortality led to replacement cycles in fertility within one to three years, although only a negligible cumulative effect on fertility persisted after five to ten years. Fluctuations in deaths among persons older than one year evoked a fertility response several years later, but this replacement response persisted after more than a decade. Although vector autoregression is not designed to account for long-term trends and their consequences, the interrelationships found here among exogenous weather shocks and fluctuations in economic conditions and demographic rates provide support for the homeostatic mechanisms hypothesized by classical economists and discussed by Malthus. The methodology of vector autoregression appears useful for studying historical series on climatic, economic and demographic variables where we do not yet have a sufficient theoretical foundation for specifying and estimating structural models.