相关实验视频
在人口,消费和环境联系中普遍存在的外部性
Partha S Dasgupta1, Paul R Ehrlich
1Faculty of Economics, University of Cambridge, Cambridge CB3 9DD, UK. partha.dasgupta@econ.cam.ac.uk
概括
不可持续的经济发展是由人口增长和消费的未计入的后果 (外部因素) 驱动的. 解决这些外部性需要紧急的当地和全球集体行动,以纠正市场的低效率和不平等.
科学领域:
- 社会生态系统分析分析社会生态系统分析
- 环境经济学环境经济学
- 人口研究是指人口研究.
背景情况:
- 人们越来越担心当前经济发展模式的可持续性.
- 对人口增长,消费和资源利用进行了广泛的实证研究.
- 人口-消费-环境联系中的社会生态过程的理论理解有限.
研究的目的:
- 开发一个统一的理论框架,以了解人口-消费-环境联系的社会生态过程.
- 识别和分类生殖,消费和自然资源使用决策中的外部性.
- 分析这些外部性的自我纠正机制和非线性动态.
主要方法:
- 与再生产,消费和环境影响相关的外部效应的识别和分类.
- 开发一个理论框架,整合这些外部性.
- 分析市场自我纠正和链路内的非线性.
主要成果:
- 个人对生殖,消费和资源使用的决定产生的外部性无处不在.
- 这些外部性导致资源分配效率低下,并经常加剧不平等.
- 市场机制不能自行纠正这些外部性,固有的非线性会放大社会生态影响.
结论:
- 人口-消费-环境联系的特点是普遍的,非自我纠正的外部性.
- 非线性放大了这些外部性的社会生态后果.
- 需要在地方和全球层面采取紧急的集体行动,以减轻这些外部性并确保可持续性.
相关概念视频
Dimensions of Health and Illness
The factors influencing the health-illness continuum can be internal or external and may or may not be under conscious control. They are related to the following eight human dimensions, and each dimension is interrelated to one other.
Social Traps
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned more cows, the larger...
Types of Toxins
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Threats to Biodiversity
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
Sustainable Development
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
Impact of Individuals on Individuals
Human behavior is intricately shaped by social influences that arise from interactions with others in diverse contexts. These influences not only mold beliefs and attitudes but also drive the regulation of behaviors through both direct communication and observational learning. The study of these processes falls within the domain of social psychology, which seeks to understand how individuals are affected by and affect those around them.Mechanisms of Social InfluenceDirect social influence...