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Push and pull factors in migration according to Everett S. Lee (1917-2007) are categories that demographers use to analyze human migration from former areas to new host locations. Lee's model divides factors causing migrations into two groups of factors: push and pull.
The major contributions to the concept of the Big Push were made by Paul Rosenstein-Rodan in 1943 and later on by Murphy, Shleifer and Vishny in 1989. Also, some contributions of Matsuyama (1992), Krugman (1991) and Romer (1986) proved to be seminal for later literature on the Big Push. Analysis of this economic model usually involves using ...
The image shows a technology push, mainly driven by internal research and development activities and market pull, driven by external market forces. [1] The business terms push and pull originated in logistics and supply chain management, [2] but are also widely used in marketing [3] [4] and in the hotel distribution business.
Two versions of the linear model of innovation are often presented: "technology push" model [3] "market pull" model [3]; From the 1950s to the Mid-1960s, the industrial innovation process was generally perceived as a linear progression from scientific discovery, through technological development in firms, to the marketplace. [3]
Push-Pull-Thinking can be understood by the application of how new technology is created. When new demand for a product is the driving factor behind its creation then it is the "pulled" method, while when a new technology enters the market with new possibilities for application or innovation then it is the "push method." [16]
The Harris–Todaro model, named after John R. Harris and Michael Todaro, is an economic model developed in 1970 and used in development economics and welfare economics to explain some of the issues concerning rural-urban migration.
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Human development theory is a theory which uses ideas from different origins, such as ecology, sustainable development, feminism and welfare economics. It wants to avoid normative politics and is focused on how social capital and instructional capital can be deployed to optimize the overall value of human capital in an economy.