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Using multi-criteria analysis the assess impacts of change in ecosystem-based fisheries management: The case of the Icelandic cod
با استفاده از تجزیه و تحلیل چند معیار ارزیابی اثرات تغییر در مدیریت شیلات مبتنی بر اکوسیستم: مورد COD ایسلندی-2020 This paper presents the outcome of one of the case-studies of the EU-funded FP7 research project MareFrame.
The project sought to remove the barriers preventing more widespread use of the ecosystem-based approach to
fisheries management by developing integrated ecosystem-based assessment methods and a decision support
framework for the management of marine resources. The findings are intended to support the implementation of
the Common Fisheries Policy (CFP) and Marine Strategy Framework Directive (MSFD). The case study focused on the
Icelandic cod fishery which is by far the most important fishery in Iceland, accounting for 43% of the country’s
total export values of seafood in 2016. Sound biological and economic management of the fishery is therefore
essential for both the nation as a whole as well as individual fisheries-dependent communities. The analysis is
done in two main steps. We first use the statistical multi-species model Gadget, developed by the Icelandic
Marine and Freshwater Research Institute, to estimate the development of catches by fleet segments (trawl, net
and longline) and stock size. Comparisons are made with two scenarios: a) adhering to the present harvest
control rule or b) changing the effort to a level corresponding to fishing mortality associated with maximum
sustainable yield (FMSY). In the second step, the two outcomes and their socio-economic effects are examined
using a three-stage analytic hierarchy process. The case study has been developed in close cooperation with
Icelandic stakeholders, and in this paper we describe how the co-creation approach was employed in an
ecosystem-based fisheries management framework. Keywords: Ecosystem-based fisheries management | Co-creation | Gadget | Multi-criteria analysis | Analytic hierarchy process | Cod |
مقاله انگلیسی |
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Demographic variation in active consumer behaviour: On-line search for retail broadband services
تنوع جمعیتی در رفتار فعال مصرف کننده: جستجوی آنلاین خدمات پهن باند خرده فروشی-2020 Consumers who actively search for better broadband deals may benefit from lower prices or improved service
quality compared to those who do not. If, however, consumers differ in their propensity to engage with the
market and actively search, these potential benefits may not accrue equally. This paper investigates differences
in consumer search activity for telecommunications services across small geographic areas. We exploit rich and
novel data from a commercial price comparison site to explore the dispersion of consumer search in the Irish
retail broadband market, while controlling for supply-side variations. By linking geo-coded searches to census
data on small area socio-economic characteristics, we identify the areas where most search originates and can
thus characterise the socio-economic groups to whom the benefits of search are most likely to accrue. We find
evidence that areas populated by many highly educated, married people, commuters, mortgage holders, and
retirees are among the most active in search. In contrast, those areas in which many older people, farmers,
low-skilled workers and students reside give rise to significantly fewer consumer searches. Keywords: Broadband services | Consumer search behaviour | Socio-economic effects | Ireland | behavioural economics | Microeconomics | Technology management | Consumer attitude | Consumer psychology | psychology | business | economics |
مقاله انگلیسی |