568 research outputs found

    Contacts, Market Institutions, and Development

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    We propose an endogenous growth model that incorporates the importance of business contacts and informal contacts. In our model, sold output increases with the stock of business contacts. The modelling of contact creation is based on matching theory. The cost of creating contacts decreases with more Community level Social Capital and Market Institutions, which we understand as networks of informal contacts. Technological growth is driven by the replacement of contacts within the economy. Political interference and centralization can provide disincentives to break old contacts and hence affect innovation. Simulations suggests that our model is in line with empirical observations.Endogenous Growth, Relational Capital, Development,

    Social Capital, Creative Destruction and Economic Growth

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    This paper provides an analytical framework to capture the economic importance of social capital for growth and innovation. Relational Capital (RC) consists of contacts between economic necessary to acquire inputs and to sell outputs units. These contacts form the individual aspect of social capital that is directly productive. Replacement of old contacts by new ones is part of Schumpeterian creative destruction leading to technological progress. Because informal social networks facilitate the search for contacts, many empirical studies find that social networks supports income generation and innovation. Market institutions enjoy increasing returns to scale in aiding contact formation compared to informal social capital networks. For growth rates in developing countries to increase, a 'fundamental transformation' from informal to formal search institutions is therefore required. But since RC replacement carries a negative externality, creative destruction and technological progress may be punished if it threatens political elite interests. Growth experiences in transition and developing countries are interpreted in this framework.

    Social Capital, Creative Destruction and Economic Growth

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    A distinction between individual and communal aspects of social capital is introduced, and their roles in production explored. Contacts are required to transact. contact formation and replacement are mediated by either market institutions or, less efficiently, by informal networks. Replacement of contacts is part of Schumpeterian creative destruction, leading to technological progress but with a negative externality. For output to increase, a "fundamental transformation" from informal to formal contact creation institutions is required. This may be blocked if political elite interests are threatened by the externality. Growth experiences in transition and developing countries are interpreted in this frameword.

    Persistencies in the Labour Market

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    Using longitudinal income-tax registers, we study how past labour market outcomes affect current labour market transition rates. We focus on hysteresis effects of the durations and incidence of previous spells out of work. We estimate flexible multi-state Mixed Proportional Hazard specifications for transition rates between employment, unemployment, and welfare/non-participation. Our main finding is that after longer periods of employment with high income, individuals' transition rates from unemployment to employment increase. Longer periods of non-employment generally decrease future transition rates to work, and sometimes also from work. The quantitative magnitude of persistency and hysteresis effects on inequality is modest.duration analysis, hysteresis, inequality, wages, unemployment, hazard rates, employment, income, work

    Importance of religion after adversity

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    After major adversity, some people rely on their religious faith and networks for comfort, support, and material goods and services. Consistent with this behavior are findings that adversity has a positive causal effect on the importance of religion in people's lives. Using a large high-frequency US dataset, we estimate the causal effects of natural disasters on stated religious importance and attendance at religious services. Effects are identified by comparing changes in outcomes over time within counties affected by a natural disaster with changes over time in other counties from the same state. We find that most estimates are near-zero in magnitude; for the full sample, for subgroups defined by religious affiliation, demographics, and income, and for different disaster types. However, significant negative effects are found immediately postdisaster, suggesting a short-term crowding-out effect in which recovery activities limit time for worship. This explanation is supported by a finding that people are less “well rested” in the first weeks postdisaster

    CoPub update: CoPub 5.0 a text mining system to answer biological questions

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    In this article, we present CoPub 5.0, a publicly available text mining system, which uses Medline abstracts to calculate robust statistics for keyword co-occurrences. CoPub was initially developed for the analysis of microarray data, but we broadened the scope by implementing new technology and new thesauri. In CoPub 5.0, we integrated existing CoPub technology with new features, and provided a new advanced interface, which can be used to answer a variety of biological questions. CoPub 5.0 allows searching for keywords of interest and its relations to curated thesauri and provides highlighting and sorting mechanisms, using its statistics, to retrieve the most important abstracts in which the terms co-occur. It also provides a way to search for indirect relations between genes, drugs, pathways and diseases, following an ABC principle, in which A and C have no direct connection but are connected via shared B intermediates. With CoPub 5.0, it is possible to create, annotate and analyze networks using the layout and highlight options of Cytoscape web, allowing for literature based systems biology. Finally, operations of the CoPub 5.0 Web service enable to implement the CoPub technology in bioinformatics workflows. CoPub 5.0 can be accessed through the CoPub portal http://www.copub.org

    Money and mental wellbeing : a longitudinal study of medium-sized lottery wins

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    One of the famous questions in social science is whether money makes people happy. We offer new evidence by using longitudinal data on a random sample of Britons who receive medium-sized lottery wins of between £1000 and £120,000 (that is, up to approximately US$ 200,000). When compared to two control groups – one with no wins and the other with small wins – these individuals go on eventually to exhibit significantly better psychological health. Two years after a lottery win, the average measured improvement in mental wellbeing is 1.4 GHQ points

    Is It Time for a Change? A Cost-Effectiveness Analysis Comparing a Multidisciplinary Integrated Care Model for Residential Homes to Usual Care

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    OBJECTIVE: The objective of this study was to evaluate the cost-effectiveness of a Multidisciplinary Integrated Care (MIC) model compared to Usual Care (UC) in Dutch residential homes. METHODS: The economic evaluation was conducted from a societal perspective alongside a 6 month, clustered, randomized controlled trial involving 10 Dutch residential homes. Outcome measures included a quality of care weighted sum score, functional health (COOP WONCA) and Quality Adjusted Life-Years (QALY). Missing cost and effect data were imputed using multiple imputation. Bootstrapping was used to analyze differences in costs and cost-effectiveness. RESULTS: The quality of care sum score in MIC was significantly higher than in UC. The other primary outcomes showed no significant differences between the MIC and UC. The costs of providing MIC were approximately €225 per patient. Total costs were €2,061 in the MIC group and €1,656 for the UC group (mean difference €405, 95% -13; 826). The probability that the MIC was cost-effective in comparison with UC was 0.95 or more for ceiling ratios larger than €129 regarding patient related quality of care. Cost-effectiveness planes showed that the MIC model was not cost-effective compared to UC for the other outcomes. INTERPRETATION: Clinical effect differences between the groups were small but quality of care was significantly improved in the MIC group. Short term costs for MIC were higher. Future studies should focus on longer term economic and clinical effects. TRIAL REGISTRATION: Controlled-Trials.com ISRCTN11076857

    Minimally invasive surgical approach in children treated for Oesophageal Atresia is associated with attention problems at school age:a prospective cohort study

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    Purpose The long-term neurodevelopment of children born with oesophageal atresia (OA) is unclear. Therefore, we assessed the neurocognitive domains and their predictors. Methods Patients born with OA between February 2006 and December 2014, who were routinely seen at eight years as part of a structured prospective longitudinal follow-up program, were included. Main outcome measures were need for school support, performance in various neurocognitive domains and potential predictors of neurocognitive problems. Results We analysed data of 65 children with a mean (SD) age of 8.1 (0.2) years, of whom 89% with OA type C. Thirty-five (54%) surgical corrections were minimally invasive; the median (interquartile range) duration of exposure to anaesthetics in the first 24 months was 398 (296 – 710) minutes. Forty-four (68%) attended regular education without extra support and intelligence was within normal range (99-108). More than 50% had z-scores ≤-2 on one or more neurocognitive domains, of which attention was the most frequently affected domain. The speed on the sustained attention task was significantly below normal (z-score -1.48 (2.12), p<.001), as was fluctuation of sustained attention (z-score -3.19 (3.80), p<.001). The minimally invasive approach and a lower socio-economic status (both p=0.006) proved significant predictors for sustained attention problems in multivariable analyses. Conclusions Children who undergo minimally invasive surgery for OA correction are at risk for sustained attention problems at school age. Future studies unravelling the effects of perioperative events on neurodevelopment should lead to optimal surgical, anaesthesiological, and intensive care management in the neonatal period

    The Emerging Aversion to Inequality: Evidence from Poland 1992-2005

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    This paper provides an illustration of the changing tolerance for inequality in a context of radical political and economic transformation and rapid economic growth. We focus on the Polish experience of transition and explore self-declared attitudes of the citizens. Using monthly representative surveys of the population, realized by the Polish poll institute (CBOS) from 1992 to 2005, we identify a structural break in the relation between income inequality and subjective evaluation of well-being. The downturn in the tolerance for inequality (1997) coincides with the increasing distrust of political elites.http://deepblue.lib.umich.edu/bitstream/2027.42/64387/1/wp919.pd
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