Research Report
Glossary: Modeling Product Adoption and Diffusion: The VCR Market
- Author
- Aziz Shuaib Ausi
- Published
- 31 July 2026
- Last updated
- 8 August 2026
- Reading time
- 2 min
- Publication type
- Research Report
- Availability
- Restricted access
Derived from an academic source (private repository).
Sterman, J. (2013). Assignment 4 Modeling Product Adoption and Diffusion: The VCR Market. 15.871 Introduction to System Dynamics. MIT OpenCourseWare.
VCR Market Diffusion Glossary
The following glossary defines the core systems thinking and market analysis terms utilized in the study of product lifecycles and historical adoption patterns, specifically modeled after the growth of the home video market.
| Term | Definition |
|---|---|
| Bass Diffusion Model | A mathematical framework used to predict how new products are adopted through the interaction of initial innovators and subsequent imitators influenced by social pressure. |
| Endogenous Purchase Rate | The calculation of consumer buying behavior based on internal model variables, such as price changes and word-of-mouth, rather than external data inputs. |
| Exogenous Price | A pricing value determined outside the system boundaries, used in early model phases to test how adoption reacts to historical price points independently. |
| Fraction Willing to Adopt (FWA) | A variable representing the portion of the potential market that would purchase a product at a specific price point, often modeled as a nonlinear function. |
| Installed Base | The total cumulative number of functional units currently in use by households or consumers at any given time. |
| Learning Curve Strength | A calculated metric representing the fixed percentage reduction in unit costs associated with every doubling of a firm's cumulative production experience. |
| Loop Dominance | The phenomenon where one feedback loop (either reinforcing growth or balancing saturation) exerts the primary influence over a system's behavior during a specific period. |
| Partial Model Testing | The methodology of isolating and validating specific sectors of a complex simulation—such as the P&L or the adoption sector—before integrating them into the full system. |
| Reference Price | The specific price threshold where the cost of a product is so high that the fraction of the population willing to adopt it effectively drops to zero. |
| Replacement Purchases | Sales generated by existing owners who need to buy a new unit because their current product has reached the end of its physical or functional life. |
| S-shaped Life Cycle | A pattern of growth characterized by an initial period of acceleration driven by reinforcing feedback, followed by a deceleration as the market reaches a saturation limit. |
| Stock-Adjustment Model | A structural framework used to determine purchase rates based on the gap between the population's desired number of units and the currently installed base. |
Source
Sterman, J. (2013). Assignment 4 Modeling Product Adoption and Diffusion: The VCR Market. 15.871 Introduction to System Dynamics. MIT OpenCourseWare.
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Citation
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Aziz Shuaib Ausi (2026). Glossary: Modeling Product Adoption and Diffusion: The VCR Market. Research Report. Aziz Shuaib Ausi. https://www.azizshuaib.com/verify/ACADEMIC_DERIVED-2026-00054
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- 31 July 2026
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