While the allocation of interest group monies to specific politicians has been extensively studied, little is known about the factors that determine of the overall level of political activity across groups. We study total contributions by corporate political action committees at the industry level. We create a large data set on industry political activity, covering 124 industries across five election cycles from 1978 to 1986 and sketch out a simple benefit-cost model to predict total corporate PAC contributions in each industry. The few previous studies of this phenomenon use relatively small samples and employ statistical techniques that are either biased or impose untested restrictions. The selectivity-corrected regression technique used here solves these problems. We find that industries with greater potential benefits from government assistance contribute systematically more but that the ability to realize these benefits is constrained by collective action problems facing firms in each industry.

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Urinary and sexual dysfunctions are side effects of radical prostatectomy (RP) for prostate cancer (PC) that contribute to depression. Despite the effectiveness of support groups at reducing depression in cancer patients, men typically do not participate in them. The purpose of this pilot study was to test the effects of a dyadic intervention (one-to-one support) on social support (Modified Inventory of Socially Supportive Behaviors), self-efficacy (Stanford Inventory of Cancer Patient Adjustment), and depression (Geriatric Depression Scale). Subjects were randomized to group. Controls (N=15; Mage=59.7) received usual care. Experimentals were paired with long-term survivors (LTS) who had RP and who had treatment side effects in common. Experimentals (N=15; Mage=57.5) met with a LTS 8 times in 8 weeks to discuss concerns associated with survivorship. No significant differences were detected on social support, but after 4 weeks, significant differences were present on depression between controls and experimentals, however these differences were not seen at 8 weeks. After 8 weeks, there were also significant differences on self-efficacy between controls and experimentals. Weekly anecdotal data supported the feasibility and acceptance of the intervention that was a low cost strategy effective at reducing depression and increasing self-efficacy in men treated by RP. Future research directions and clinical application is presented.

Aims and objectives. To use concept analysis to identify characteristics of feeding difficulty and its antecedents and consequences that provide direction for assessment and management. Background. Feeding difficulty is often recognised as a common problem for older adults and is associated with weight loss, poor nutrition and risk for aspiration pneumonia. The cognitive impairment found in persons with dementia impairs the ability of these adults to complete motor and perceptual tasks required for eating and often prevent the older adult from accepting help with feeding from caregivers. Design. Systematic review. Methods. In 2006, literature searches using keywords (feeding, eating, nutrition, malnutrition, feeding assessment, dementia, ageing and concept analysis, dementia and feeding and excluding enteral feeding, tube feedings, PEG and enteral nutrition) were done in Medline, CINHAL, AGELINE and Social Science Full Text. Seventy relevant articles in English were found. After a review of the relevant articles, concept analysis was used to develop a definition of feeding difficulty, its defining characteristics and to delineate feeding difficulty from its antecedents and consequences. Results. Feeding difficulties arise at the interface between the caregiver strategies to assist the older adult with getting food into the mouth and chewing and swallowing food. A model of feeding difficulty delineates the antecedents and consequences of feeding difficulties.Conclusions. The conceptual model of feeding difficulties provides a strong and clear organising structure for research that can be used to developed evidence based guidelines for practice. Relevance to clinical practice. The conceptual model provides directions for assessment of feeding difficulties and their antecedents. The model can be used to identify interventions that address antecedents of feeding difficulty (risk factors) and different types of feeding difficulties.