نتایج جستجو برای: economic interactions

تعداد نتایج: 695682  

2013
Di Jin

& This study presents a framework for analyzing the interactions between aquaculture and capture fisheries in the context of ecosystem-based management. We extends a model of the economic and ecological systems in coastal New England by incorporating an aquaculture sector in a computable general equilibrium (CGE) model and by examining the forage fish and aquaculture link in a marine food web. ...

2010
Xinyue Ye

The coupled space-time attributes of economic phenomena at various scales are difficult to represent and examine. This paper aims to develop a framework that can be used to systematically generate research questions regarding patterns, trends, interactions, and relationships in space-time data, using economic growth data as an example. A taxonomy of methods is then suggested. The cross-fertiliz...

Journal: :Environmental science & technology 2008
Sarah E Pilgrim Leanne C Cullen David J Smith Jules Pretty

Accumulated knowledge about nature is an important part of people's capacityto manage and conserve the environment. But this ecological knowledge is now being increasingly lost. There have been few cross-cultural and quantitative studies to describe the phenomenon of its loss. Here we show a strong inverse correlation between ecological knowledge and income levels in and among India, Indonesia,...

Journal: :CoRR 2016
Ross D. King

Money is a technology for promoting economic prosperity. Over history money has become increasingly abstract, it used to be hardware, gold coins and the like, now it is mostly software, data structures located in banks. This datamoney is passive and requires computer programs for manipulation, these programs create money, add/remove money from accounts, transfer money in sales transactions, pro...

Journal: :Lancet 2008
Shenglan Tang Qingyue Meng Lincoln Chen Henk Bekedam Tim Evans Margaret Whitehead

In terms of economic development, China is widely acclaimed as a miracle economy. Over a period of rapid economic growth, however, China's reputation for health has been slipping. In the 1970s China was a shining example of health development, but no longer. Government and public concerns about health equity have grown. China's health-equity challenges are truly daunting because of a vicious cy...

Journal: :پژوهش های ایران شناسی 0
میثم لباف خانیکی استادیار گروه باستان شناسی دانشگاه تهران بهمن فیروزمندی دانشیار گروه باستان شناسی دانشگاه تهران علیرضا خسروزاده استادیار گروه باستان شناسی دانشگاه شهرکرد

the sasanian settlements located persian gulf shores proving the economic-political sovereignty of iran over the persian gulf through preislamic era denotes commercial relations between iran and other regions. the remains of sasanian sites and scattered ceramic sherds help us to apprehend the history of the socio-political organization of the persian gulf sphere and recognize the interactions b...

Journal: :European journal of population = Revue europeenne de demographie 1999
A Prskawetz G Feichtinger M Luptacik A Milik F Wirl F Hof W Lutz

This study focuses on the dynamic, endogenous, nonlinear interactions between the economy, population growth and the environment. Literature on endogenous growth theory was reviewed and the 3-sector demoeconomic model was provided as the analytical framework for the study of sustainable development through the integration of population growth, resource use and economic growth. The model is de...

2012
Michael Szell Roberta Sinatra Giovanni Petri Stefan Thurner Vito Latora

Despite the recent availability of large data sets on human movements, a full understanding of the rules governing motion within social systems is still missing, due to incomplete information on the socio-economic factors and to often limited spatio-temporal resolutions. Here we study an entire society of individuals, the players of an online-game, with complete information on their movements i...

2011
Gabriel Kronberger Stefan Fink Michael Kommenda Michael Affenzeller

Macro-economic models describe the dynamics of economic quantities. The estimations and forecasts produced by such models play a substantial role for financial and political decisions. In this contribution we describe an approach based on genetic programming and symbolic regression to identify variable interactions in large datasets. In the proposed approach multiple symbolic regression runs ar...

2009
Amelie F. Constant Klaus F. Zimmermann

This chapter deals with the economic and ethnic diversity caused by international labor migration, and their economic integration possibilities. It brings together three strands of literature dealing with the neoclassical economic assimilation, ethnic identities and attitudes towards immigrants and the natives, and provides an analysis in understanding their interactions. The issue of how immig...

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