Examination of the health‐belief model to predict the dietary quality and body mass of adults

We examined the ability of the health‐belief model to predict individuals’ dietary quality and body mass among a nationwide sample of 1319 adults in the United States. Simultaneous estimation of the structural equation model found acceptable goodness‐of‐fit to the data. Explained variance in dietary quality and body mass, however, were moderate to weak. The model included three types of nutrition knowledge: basic facts, diet–health awareness and ability to accurately self‐assess nutrient intake. None of these variables had a strong effect on dietary quality or body mass. We speculate that lifestyle characteristics, cultural habits, community infrastructure, and the politics of food production and retailing – variables found in other studies to affect dietary quality and body mass yet not available in our data – might outweigh the effects of nutrition knowledge and sociodemographic factors on estimating dietary quality and body mass. We suggest that future research and intervention programmes focus more on social, cultural and political context than on nutrition knowledge. Current collaborations among life and social scientists to design foods to improve human nutrition might also prove effective in reducing the prevalence of overweight and obesity.     

A UK Test of an Inflation‐Adjusted Ohlson Model

Abstract:   This paper conducts a UK test of a version of the Ohlson (1995) model. We should only expect abnormal earnings to revert to zero if the book value of assets is economically meaningful. In this paper we make use of the property revaluations common in UK accounts, but estimate other asset values and earnings in inflation‐adjusted terms. This, we argue, gives rise to estimates of abnormal earnings that can reasonably be expected to revert to zero. We then test this modified model on UK data using the Dechow, Hutton and Sloan (1999) method. In line with the predictions of the Ohlson model, we find that these modified abnormal earnings appear to mean revert, and that a first order autoregressive process is sufficient to capture the persistence of UK real abnormal earnings. The modified abnormal earnings model in general predicts one year ahead earnings more successfully than an unmodified model. Furthermore, for much of the sample period, one year ahead predictions of abnormal earnings are better for the real model during periods of higher inflation. The undervaluation problem found in prior studies appears to be replaced with an overvaluation problem in the real model which is more acute during periods of high inflation. Last, we show that an estimate of the model based upon an industry level specification appears to perform no better than a market‐wide specification of the model.     

Parental Income and Continuing Education of Second Generation Immigrants in Sweden

Understanding the economic integration of minority ethnic communities requires an analysis of the educational process. This paper examines second‐generation immigrant youths’ educational attainments in comparison with those of similarly aged native Swedes. Binomial‐logit, grouped‐regression and multinomial‐logit models are applied to longitudinal data, 1991–1996. The results give evidence for socioeconomic determinants of post‐compulsory education and for parental influence on educational choices. Parental income affects second‐generation immigrants’ post‐compulsory education and Swedes’ choice of level of education. In general, the stronger the labour market positions of the parents, the higher the probability of the children continuing education. It is also found that the geographical origin of second‐generation immigrants matter, with youths of Asian origin having a higher probability of continuing their education. We suggest policy changes on different levels based on the evidence of the paper, as short‐run, long‐run and in general.     

Firm responses to secondary stakeholder action

In this paper, we explore the conditions under which secondary stakeholder groups are likely to elicit positive firm responses. To this end, we build upon and advance Mitchell, Agle, and Wood's (1997) stakeholder saliency and identification framework by defining saliency in terms of actions, not perceptions, and by proposing that power, legitimacy, and urgency arise out of the nature of stakeholder–request–firm triplets. To test this framework, we build a unique dataset of over 600 secondary stakeholder actions within the United States, all concerning environmental issues over the period 1971–2003. Copyright © 2006 John Wiley & Sons, Ltd.     

Estimating the export and import demand for manufactured goods: The role of FDI

In this paper we estimate the demand for exports and imports of manufactured goods for a panel containing the majority of the EU countries as well as the United States and Japan. The model includes as explanatory factors both the traditional determinants of trade and also the stock of foreign direct investment (FDI). We apply panel unit root and cointegration tests allowing for heterogeneity. Whereas there is no evidence of cointegration when using just the traditional formulation, the results are favorable to the existence of long-run relationships linking the variables of the augmented model. Moreover, the results point mainly to a complementary relationship between trade and FDI.     

Agricultural Policy Reform and Off‐farm Labour Decisions

Off‐farm labour decisions of a sample of Kansas farmers are evaluated. The central question of our analysis pertains to whether 1996 US farm policy reforms may have altered the decisions to work off the farm. The effects of policy decoupling on off‐farm labour are complex: different aspects of policy changes can have opposing effects on off‐farm work decisions. Essentially, this makes this issue an empirical question. Results show that the introduction of fixed, decoupled payments in 1996 might have reduced the likelihood of off‐farm labour participation. However, the new policy environment may have increased farm households’ revealed aversion to risk, motivating a higher participation in non‐farm labour markets. The effects of 1996 policy reforms on farm income variability could have been attenuated by changes in US crop insurance programmes and by an increase in emergency assistance payments towards the end of the 1990s. The reduction in price supports may have increased the motivation for working off the farm. The net effect of the overall reforms on off‐farm work participation is not likely to have been large.     

输送机托辊阻力及跑合试验综合性能测试仪的设计(下)——测试仪硬、软件控制系统

阐述了系统硬件的电气原理及电路的设计思路和参数选择,讨论了硬件系统的工作过程,建立了测试阻力参数和跑合试验参数的数学模型,给出了测试仪软件系统及数据处理的总体结构,并对主要应用程序进行了设计。     

EXAMINATION OF A PATH MODEL RELATING INFORMATION TECHNOLOGY INFRASTRUCTURE WITH FIRM PERFORMANCE

This article draws on the resource‐based view of the firm to investigate the mechanisms through which information technology (IT) impacts firm performance. Research suggests that the relationship between IT and firm performance may be both direct and indirect. In this study, a path model is tested that proposes a firm's IT infrastructure resources as having both a direct impact on organizational performance, as well as an indirect effect that is propagated through its impact on an intermediate organizational resource, a firm's logistics information system (LIS). The results suggest that positive firm performance may be derived directly from an organization's superior IT infrastructure, as well as indirectly, through its enabling impact on LIS's. These findings contribute to our understanding of the nature of the relationship between IT and firm performance by exploring the value of IT at both the process and organizational levels.