View source for Engineering:Technological change

{{morefootnotes|date=September 2020}}
{{short description|Process of invention, innovation and diffusion of technology or processes}}
'''Technological change''' ('''TC''') or '''technological development''' is the overall process of [[Invention|invention]], [[Social:Innovation|innovation]] and [[Physics:Diffusion of innovations|diffusion]] of [[Engineering:Technology|technology]] or [[Finance:Business process|processes]].<ref>Derived from Jaffe et al. (2002) ''Environmental Policy and technological Change'' and Schumpeter (1942) ''Capitalism, Socialisme and Democracy'' by Joost.vp on 26 August 2008</ref><ref name="Econ refsdon't" >From ''[[The New Palgrave Dictionary of [http://www.dictionaryofeconomics.uk/article?id=pde2008_T000034&q=Technological%20change&topicid=&result_number=7 technical change]" by S. Metcalfe.<br/>&nbsp; • "[http://www.dictionaryofeconomics.com/article?id=pde2008_B000125&edition=&field=keyword&q=technical%20change&topicid=&r biased and biased technological change]" by Peter L. Rousseau.<br/>&nbsp; • "[http://www.dictionaryofeconomictimes.com/article?id=pde2008_S000493&edition=&field=keyword&q=technical%20change&topicid=&result_number=4 skill-biased technical change]" by Giovanni L. Violante.</ref> In essence, technological change covers the [[Invention|invention]] of technologies (including processes) and their [[Finance:Commercialization|commercialization]] or release as [[Open source|open source]] via [[Research and development|research and development]] (producing [[Philosophy:Emerging technologies|emerging technologies]]), the [[Continual improvement process|continual improvement]] of technologies (in which they often become less expensive), and the diffusion of technologies throughout industry or society (which sometimes involves [[Social:Disruptive innovation|disruption]] and [[Engineering:Technological convergence|convergence]]). In short, technological change is based on both better and more technology.

[[File:Technological Change.jpg|750px|thumb|center|Original model of three phases of the process of Technological Change]]

== Modeling technological change ==
In its earlier days, technological change was illustrated with the 'Linear Model of Innovation', which has now been largely discarded to be replaced with a model of technological change that involves innovation at all stages of research, development, diffusion, and use. When speaking about "modeling technological change," this often means the process of innovation. This process of continuous improvement is often modeled as a curve depicting decreasing costs over time (for instance [[Physics:Fuel cell|fuel cell]] which have become cheaper every year). TC is also often modelled using a [[Learning curve|learning curve]], ex.: Ct=C0 * Xt^-b

Technological change itself is often included in other models (e.g. climate change models) and was often taken as an exogenous factor. These days TC is more often included as an endogenous factor. This means that it is taken as something you can influence. Today, there are sectors that maintain the policy which can influence the speed and direction of technological change. For example, proponents of the Induced Technological Change hypothesis state that policymakers can steer the direction of technological advances by influencing relative factor prices and this can be demonstrated in the way climate policies impact the use of fossil fuel energy, specifically how it becomes relatively more expensive.<ref>Ruttan, Vernon W. "Technology, growth, and development: an induced innovation perspective." OUP Catalogue (2000).</ref> Until now, the empirical evidence about the existence of policy-induced innovation effects is still lacking and this may be attributed to a variety of reasons outside the sparsity of models (e.g. long-term policy uncertainty and exogenous drivers of (directed) innovation).<ref>Jaffe, Adam B., Richard G. Newell, and Robert N. Stavins. "Technological change and the environment." Handbook of environmental economics. Vol. 1. Elsevier, 2003. 461-516.</ref> A related concept is the notion of Directed Technical Change with more emphasis on price induced directional rather than policy induced scale effects.<ref>Acemoglu, Daron. "Directed technical change." The Review of Economic Studies 69.4 (2002): 781–809.</ref>

===Invention===
The creation of something new, or a "breakthrough" technology. This is often included in the process of product development and relies on research. This can be demonstrated in the invention of the spreadsheet software. Newly invented technologies are conventionally patented.

===Diffusion===
{{main|Physics:Diffusion of innovations}}
Diffusion pertains to the spread of a technology through a society or industry.<ref>{{Cite book|title=ICT Diffusion in Developing Countries: Towards a New Concept of Technological Takeoff|last=Lechman|first=Ewa|publisher=Springer|year=2015|isbn=978-3-319-18253-7|location=New York|pages=30}}</ref> The [[Physics:Diffusion of innovations|diffusion]] of a technology theory generally follows an [[Logistic function|S-shaped curve]] as early versions of technology are rather unsuccessful, followed by a period of successful innovation with high levels of adoption, and finally a dropping off in adoption as a technology reaches its maximum potential in a market. In the case of a personal computer, it has made way beyond homes and into business settings, such as office [[Workstation|workstation]]s and [[Server (computing)|server machines]] to host websites.

==Technological change as a social process==
Underpinning the idea of a technological change as a social process is a general agreement on the importance of social context and communication. According to this model, technological change is seen as a social process involving producers and adopters and others (such as government) who are profoundly affected by cultural setting, political institutions, and marketing strategies.

In [[Social:Free market|free market]] economies, the maximization of profits is a powerful driver of technological change. Generally, only those technologies that promise to maximize profits for the owners of incoming producing capital are developed and reach the market. Any technological product that fails to meet this criterion - even though they may satisfy important societal needs - are eliminated. Therefore, technological change is a social process strongly biased in favor of the financial interests of capital. There are currently no well established democratic processes, such as voting on the social or environmental desirability of a new technology prior to development and marketing, that would allow average citizens to direct the course of technological change.<ref>Huesemann, Michael H., and Joyce A. Huesemann (2011). [http://www.newtechnologyandsociety.org ''Technofix: Why Technology Won’t Save Us or the Environment''], Chapter 11, "Profit Motive: The Main Driver of Technological Development", New Society Publishers, Gabriola Island, Canada, {{ISBN|0865717044}}</ref>

===Elements of diffusion===

Emphasis has been on four key elements of the technological change process: (1) an innovative technology (2) communicated through certain channels (3) to members of a social system (4) who adopt it over a period of time. These elements are derived from Everett M. Rogers' [[Physics:Diffusion of innovations|diffusion of innovations]] theory using a communications-type approach.

===Innovation===

Rogers proposed that there are five main attributes of innovative technologies that influence acceptance. He called these criteria ACCTO, which stands for Advantage, Compatibility, Complexity, Trialability, and Observability. ''Relative advantage'' may be economic or non-economic, and is the degree to which an innovation is seen as superior to prior innovations fulfilling the same needs. It is positively related to acceptance (e.g. the higher the relative advantage, the higher the adoption level, and vice versa). ''Compatibility'' is the degree to which an innovation appears consistent with existing values, past experiences, habits and needs to the potential adopter; a low level of compatibility will slow acceptance. ''Complexity'' is the degree to which an innovation appears difficult to understand and use; the more complex an innovation, the slower its acceptance. ''Trialability'' is the perceived degree to which an innovation may be tried on a limited basis, and is positively related to acceptance. Trialability can accelerate acceptance because small-scale testing reduces risk. ''Observability'' is the perceived degree to which results of innovating are visible to others and is positively related to acceptance.

====Communication channels====

Communication channels are the means by which a source conveys a message to a receiver. Information may be exchanged through two fundamentally different, yet complementary, channels of communication. Awareness is more often obtained through the ''mass media'', while uncertainty reduction that leads to acceptance mostly results from ''face-to-face communication''.

====Social system====

The social system provides a medium through which and boundaries within which, innovation is adopted. The structure of the social system affects technological change in several ways. Social norms, opinion leaders, change agents, government and the consequences of innovations are all involved. Also involved are cultural setting, nature of political institutions, laws, policies and administrative structures.

====Time====

[[Time]] enters into the acceptance process in many ways. The time dimension relates to the innovativeness of an individual or other adopter, which is the relative earliness or lateness with which an innovation is adopted.

[[File:PPF expansion.svg|thumb|right|Technological change can cause the production-possibility frontier to shift outward, allowing economic growth.]]

==Economics==

In [[Finance:Economics|economics]], technological change is a change in the set of feasible [[Finance:Production set|production possibilities]].

A technological [[Social:Innovation|innovation]]  is [[Finance:Hicks-neutral technical change|Hicks neutral]], following [[Biography:John Hicks|John Hicks]] (1932), if a change in technology does not change the ratio of [[Finance:Capital (economics)|capital]]'s [[Finance:Marginal product|marginal product]] to labour's marginal product for a given capital-to-labour ratio. A technological innovation is Harrod neutral (following [[Biography:Roy Harrod|Roy Harrod]]) if the technology is labour-augmenting (i.e. helps labor); it is [[Biography:Robert Solow|Solow neutral]] if the technology is capital-augmenting (i.e. helps capital).<ref name="Econ refsdon't" /><ref>[[Biography:John Hicks|J. R. Hicks]] (1932, 2nd ed., 1963). ''[[Finance:The Theory of Wages|The Theory of Wages]]'', Ch. VI, Appendix, and Section III. Macmillan.</ref>

==See also==
{{Colbegin|colwidth=30em}}
* [[Biology:Accelerating change|Accelerating change]]
* [[Social:Cultural lag|Cultural lag]]
* [[Social:Innovation|Innovation]]
* Investment specific technological progress
* [[Philosophy:Posthumanization|Posthumanization]]
* [[Finance:Productivity|Productivity]]
* Productivity improving technologies (historical)
* Second industrial revolution
* [[Engineering:Technical change|Technical change]]
* Technical progress function
* [[Engineering:Technological innovation system|Technological innovation system]]
* [[Engineering:Technological revolution|Technological revolution]]
* [[Engineering:Technological transitions|Technological transitions]]
* [[Engineering:Technological unemployment|Technological unemployment]]
* [[Engineering:Theories of technology|Theories of technology]]
* Wait calculation
{{colend}}

== References ==

=== Notes ===
{{reflist}}

=== Further reading ===
;Books
* Jones, Charles I. (1997). ''Introduction to Economic Growth''. W. W. Norton. {{ISBN|0-393-97174-0}}
* Kuhn, Thomas Samuel (1996). ''The Structure of Scientific Revolutions'', 3rd edition. University of Chicago Press. {{ISBN|0-226-45808-3}}
* Mansfield, Edwin (2003). ''Microeconomic Theory and Applications'', 11th edition. W. W. Norton {{ISBN|0-393-97918-0}}
* [[Biography:Everett Rogers|Rogers, Everett]] (2003). ''Diffusion of Innovations'', 5th edition, Free Press. {{ISBN|0-7432-2209-1}}
*Green, L (2001). ''Technoculture'', Allen and Unwin, Crows Nest, pp.&nbsp;1–20.
; Articles
*Danna, W. (2007). "They Had a Satellite and They Knew How to Use It", ''American Journalism''{{Clarify|date=August 2011}}, Spring, Vol. 24 Issue 2, pp.&nbsp;87–110. Online source: [http://www.britannica.com/bps/additionalcontent/18/26090507/They-Had-a-Satellite-and-They-Knew-How-to-Use-It-How-Donna-Allen-Led-Women-to-the-Forefront-of-the-Technological-Revolution-in-Communication abstract and excerpt.]
*Dickey, Colin (January 2015), ''[http://aeon.co/magazine/technology/is-technology-making-us-vulnerable/  A fault in our design] {{Webarchive|url=https://web.archive.org/web/20150812183233/http://aeon.co/magazine/technology/is-technology-making-us-vulnerable/ |date=12 August 2015 }}.'' "Perhaps a brighter technological future lies less in the latest gadgets, and rather in learning to understand ourselves better, particularly our capacity to forget what we’ve already learned. The future of technology is nothing without a long view of the past, and a means to embody history’s mistakes and lessons."  ''Aeon''
* Hanlon, Michael (December 2014), ''[http://aeon.co/magazine/science/why-has-human-progress-ground-to-a-halt/ The golden quarter.] {{Webarchive|url=https://web.archive.org/web/20150905195655/http://aeon.co/magazine/science/why-has-human-progress-ground-to-a-halt/ |date=5 September 2015 }}'' "Some of our greatest cultural and technological achievements took place between 1945 and 1971. Why has progress stalled?"  ''Aeon''

==External links==

{{emerging technologies|topics=yes}}
{{Science and technology studies}}

{{DEFAULTSORT:Technological Change}}
[[Category:Technological change| ]]

{{Sourceattribution|Technological change}}