排序方式: 共有69条查询结果,搜索用时 281 毫秒
61.
Ola Henfridsson Joe Nandhakumar Harry Scarbrough Nikiforos Panourgias 《Information and Organization》2018,28(2):89-100
Digital innovation introduces a new open-ended value landscape to anyone seeking to generate or capture new value. To understand this landscape, we distinguish between design recombination and use recombination, explore how they play out together, and redirect the attention from products and services toward digital resources. Digital resources serve as building-blocks in digital innovation, and they hold the potential to simultaneously be part of multiple value paths, offered through design recombination and assembled through use recombination. Building on this perspective, we offer the value spaces framework as a tool for better understanding value creation and capture in digital innovation. We illustrate the framework and offer the early contours of a research agenda for information systems researchers. 相似文献
62.
Subal C. Kumbhakar Gudbrand Lien Ola Flaten Ragnar Tveterås 《Journal of Agricultural Economics》2008,59(2):350-369
Quota regulations that prevent output expansion of farms and reallocation of output between farms can cause lower growth in output and productivity. The aim of this study was to explain the output growth rate of Norwegian dairy farms since 1976, and to decompose it into output, input, socioeconomic and technical change components. Instead of using the standard distance function approach for multi‐output technologies, we use a growth rate formulation, which automatically removes the farm‐specific effects. This formulation also helps to impose non‐negativity constraints on marginal products of inputs (input elasticities), which are often violated for many observations, especially when flexible functional forms are used. The farm‐level panel data cover three periods: before the quota scheme was introduced (1976–1982); the period with the most output‐restricting quota scheme (1983–1996); and the period with a more flexible quota scheme (from 1997 onwards). Results show that the milk quota regulations had a significant constraining effect on output growth, in particular on milk output in the period 1983–1996. Furthermore, the output mix has shifted towards meat production for the average farm. What emerges from this study is that output growth and technical change are negatively influenced by policy aims where productive performance has not been the primary objective, and that there is scope for increased farm growth if the quota regime is liberalised. 相似文献
63.
Ola Olsson 《Journal of Economic Growth》2000,5(3):253-275
This articlepresents a model of knowledge, seen as a set of ideas definedin a multidimensional idea space. Knowledge is created throughconvex combinations of older ideas and through paradigm shifts.When normal science has made the knowledge set convex, scientificopportunity is exhausted. Individual countries are endowed withdifferent knowledge sets, which gives rise to idea gaps. Thegrowth of a country's knowledge depends on diffusion from othercountries, on own production, and on the state of its human capitaland institutions. In the long run, economic growth will dependon knowledge growth, but only paradigm shifts can save R&Dfrom diminishing returns 相似文献
64.
Innovation networks, establishment characteristics and the regional environment are likely to play different roles in product innovation in enterprises of different size. This paper focuses on the influence of the regional environment on the early adoption of micro-electronic components in product development in small and medium-sized enterprises (SMEs) and large enterprises (LEs). Drawing upon existing literature we compare the role of enterprise characteristics, innovation networks and, in particular, the regional environment for an early use of micro-electronic components in product development in SMEs and LEs using a tobit model. Our central hypothesis is that SMEs are more dependent upon their regional environment than LEs for an early adoption. However, this hypothesis is rejected by our empirical results that show that location in a large, dense region has a significant positive effect on product innovation in LEs, while it has a negative but non-significant effect on product innovation in SMEs. Our results imply peripheral regions are able to provide an innovative environment for SMEs, whereas LEs need the richer environment offered by the core regions. The results are also interesting from a policy point of view because they indicate that SMEs can be early users of new technologies even if they are located outside the large urban areas. 相似文献
65.
Ola Andersson Topi Miettinen Kaisa Hytönen Magnus Johannesson Ute Stephan 《Experimental Economics》2017,20(3):531-555
We experimentally subliminally prime subjects prior to charity donation decisions by showing words that have connotations of pro-social values for a very brief time (17 ms). Our main finding is that, compared to a baseline condition, the pro-social prime increases donations by approximately 10–17 % among subjects with strong pro-social preferences (universalism values). We find a similar effect when interacting the prime with the Big 5 personality characteristic of agreeableness. We furthermore introduce a novel method for testing for priming, “subliminity”. This method reveals that some subjects are capable of recognizing prime words, and the overall results are weaker when we control for this capacity. 相似文献
66.
Alexandre Gherardi Stéphane Roze Johan Kuijvenhoven Ola Ghatnekar Yum Lina Yip Sonderegger 《Journal of medical economics》2018,21(9):869-877
Aims: Budesonide with multi-matrix technology (MMX) is an oral corticosteroid, shown to have high topical activity against ulcerative colitis (UC) while maintaining low systemic bioavailability with few adverse events. The aim of this study was to evaluate the cost-effectiveness of budesonide MMX versus commonly used corticosteroids, in the second-line treatment of active mild-to-moderate UC in the Netherlands.Materials and methods: An eight-state Markov model with an 8 week cycle length captured remission, four distinct therapy stages, hospitalization, possible colectomy and mortality. Remission probability for budesonide MMX was based on the CORE-II study. Population characteristics were derived from the Dutch Inflammatory Bowel Disease South Limburg cohort (n?=?598) and included patients with proctitis (39%), left-sided (42%) and extensive disease (19%). Comparators (topical budesonide foam and enema, oral budesonide and prednisolone) were selected based on current Dutch clinical practice. Treatment effects were evaluated by network meta-analysis using a Bayesian framework. Cost-effectiveness analysis was performed over a 5 year time horizon from a societal perspective, with costs, health-state and adverse event utilities derived from published sources. Outcomes were weighted by disease extent distribution and corresponding comparators.Results: Budesonide MMX was associated with comparable quality-adjusted life year (QALY) gain versus foam and oral formulations (+0.01 QALYs) in the total UC population, whilst being cost-saving (EUR 366 per patient). Probabilistic sensitivity analysis evaluated an 86.6% probability of budesonide MMX being dominant (cost-saving with QALY gain) versus these comparators. Exploratory analysis showed similar findings versus prednisolone.Limitations: Differing definitions of trial end-points and remission across trials meant indirect comparison was not ideal. However, in the absence of head-to-head clinical data, these comparisons are reasonable alternatives and currently offer the only comparison of second-line UC treatments.Conclusions: In the present analysis, budesonide MMX was shown to be cost-effective versus comparators in the total UC population, for the second-line treatment of active mild-to-moderate UC in the Netherlands. 相似文献
67.
Ola Mahmoud 《Quantitative Finance》2014,14(12):2073-2074
68.
We experimentally investigate to what extent people trust and honor trust when they are playing with other people’s money (OPM). We adopt the well-known trust game by Berg et al. (in Games Econ. Behav. 10:122–142, 1995), with the difference that the trustor (sender) who sends money to the trustee (receiver) does this on behalf of a third party. We find that senders who make decisions on behalf of others do not behave significantly different from senders in our baseline trust game who manage their own money. But receivers return significantly less money when senders send a third party’s money. As a result, trust is only profitable in the baseline trust game, but not in the OPM treatment. The treatment effect among the receivers is gender specific. Women return significantly less money in OPM than in baseline, while there is no such treatment effect among men. Moreover, women return significantly less than men in the OPM treatment. 相似文献
69.
Journal of Economic Growth - Cultural norms diverge substantially across societies, often within the same country. We propose and investigate a self-domestication/selective migration hypothesis,... 相似文献