Talk:Supply and demand

Consider Adding section: "Human Subject experiments with Supply and Demand"

In the 1960s, Vernon L. Smith developed market experiments based on inducing known Supply and Demand curves into a group of human subjects through conditional cash payments, and then observing the patterns of bids, asks, and trades in a market setting (1962, American Economic Review). For this and other work based strongly on supply/demand experiments and competitive market models that rely upon rational profit-seeking behavior, he shared the 2002 Nobel Memorial Prize in Economic Sciences. His work, along with numerous others, helped to found the specialty of Experimental Economics. — Preceding unsigned comment added by 66.18.52.166 (talk • contribs) 07:38, 17 September 2019 (UTC)

Rename to "Supply and demand curves"

I'd like to point out supply and demand is not limited to the neoclassical school, only price determination using Marshall's curves is. Indeed, as the history section points out, classical economists like Smith and Ricardo made frequent reference to supply and demand. As did Marx. KetchupSalt (talk) 11:38, 22 December 2021 (UTC)

Element of economic

What demand and supply 41.204.146.210 (talk) 19:06, 19 January 2022 (UTC)

Poor example

smooth curve

Q ( P ) = 3 P − 2 {\displaystyle Q(P)=3P^{-2}} seems imho to be a poor choice since it has Q decreasing as P increases. JdelaF (talk) — Preceding undated comment added 17:05, 26 October 2022 (UTC)

This is entirely in line with the theory. What is more suspect is the supply curve, that price should increase with increasing supply despite economies of scale. This is brought up in the criticism section. KetchupSalt (talk) 12:25, 27 October 2022 (UTC)

Would You Please Restore the Content on "A positive feedback supply and demand model"

I reverted Avatar317 's removed content on "A positive feedback supply and demand model" because I have found several good references on that model. Before I could add those references MrOllie undid my revision. MrOllie suggested me to post here, so that other editors can see and take necessary action accordingly.

I am listing the references for your consideration to restore the content.

Some examples of positive feedback is that popular products tend to become even more popular:

• Altszyler, E; Berbeglia, F.; Berbeglia, G.; Van Hentenryck, P. (2017). "Transient dynamics in trial-offer markets with social influence: Trade-offs between appeal and quality". PLOS ONE. 12 (7): doi:10.1371/journal.pone.0180040

• Same as the concept of reflexivity theory in asset bubbles in which prices influcend expections that in turn influence prices as argued by financier George Soros. George Soros - Wikipedia Reflexivity (social theory) - Wikipedia Azzopardi, Paul V. (2010), Behavioural Technical Analysis, Harriman House Limited, p. 116, ISBN 9780857190680,

• Another example is programs such as Facebook and X that depend on positive feedback to create interest in topics and drive the take-up of the media. In the age of smartphones and social media, the feedback loop has created a craze for virtual validation in the form of likes. Burghardt, Keith; Lerman, Kristina (18 Jan 2022). Emergent Instabilities in Algorithmic Feedback Loops (Report). Cornell University. arXiv:2201.07203 Benewaa, Dorcas (May 7, 2021). "Social Media And The Dopamine Feedback Loop: Here's How It Affects You". Digital Times. Reardon, Jayne (Dec 14, 2017). "Can We Avoid the Feedback Loop of Social Media?". 2Civility.

• W. Brian Arthur has also writtn about positive feedback in the economy. Arthur, W. Brian (1990). "Positive Feedbacks in the Economy". Scientific American. 262 (2): 80. Bibcode:1990SciAm.262b..92A. doi:10.1038/scientificamerican0290-92

• Lutz, Arnold and Stephan Bruner, „The economics of rational speculation in the prsence of positive feedback trading,” The Quarterly Review of Economics and Finance, 57(2015) 161-174. http://dx.doi.org/10.1016/j.qref.2014.11.005
• Cheng, Po-Keng ; Kim, Young Shin, Speculative bubbles and crashes: Fundamentalists and positive-feedback trading,” Cogent economics & finance, 2017-01, Vol.5 (1), p.1-28, Article 1381370
• Lu, Zhou ; Bao, Te ; Yu, Xiaohua, Gender and Bubbles in Experimental Markets with Positive and Negative Expectation Feedback Computational economics, 2021-04, Vol.57 (4), p.1307-1326.
• Liu, Xufeng ; Wan, Die, Asymmetric positive feedback trading and stock pricing in China The North American journal of economics and finance, 2022-04, Vol.60, p.101658, Article 101658
• Bao, Te ; Hommes, Cars When speculators meet suppliers: Positive versus negative feedback in experimental housing markets Journal of economic dynamics & control, 2019-10, Vol.107, p.103730, Article 103730
• Journal of Economic Dynamics & control, 2019-10, Vol.107, p.103730, Article 103730

Bradelykooper (talk) 20:00, 31 March 2024 (UTC)

The problem here is that you are trying to write this content WP:BACKWARDS. Wikipedia articles should be written by reading and summarizing sources, and that's clearly NOT what you are trying to do here. For example, the source: "Gender and Bubbles in Experimental Markets with Positive and Negative Expectation Feedback" is about (from their abstract) "We investigate the effect of gender on the price deviation..." which is NOT a source that discusses a positive supply and demand model. ---Avatar317^(talk) 20:42, 31 March 2024 (UTC)

Please also see (for your own edification) Correlation is not causation in stating "popular products tend to become even more popular" - this does NOT mean that this effect is occurring BECAUSE OF greater economic supply. Here you could also read WP:OR. ---Avatar317^(talk) 20:45, 31 March 2024 (UTC)