The Law of Diminishing Marginal Utility
Prior to beginning work on this discussion, read Farah Mohammed’s article, Why Are Diamonds More Expensive Than Water? as well as Chapter 5 in your textbook, especially Sections 5.1 and 5.3, and respond to the following: Describe the relationship between total utility and marginal utility. Explain if marginal utility can be negative. Examine the diamond-water paradox. Why are diamonds more expensive than water? Evaluate the law of diminishing marginal utility. Identify some items, explaining your reasoning, that do not follow the law of diminishing marginal utility. Evaluate how the law of diminishing marginal utility can explain the diamond-water paradox. The Law of Diminishing Marginal Utility paper must be three double-spaced pages in length (not including title and references pages) and formatted according to APA style as outlined in the Ashford Writing Center’s APA Style resource. Must include a separate title page with the following: Title of paper, Student’s name, Course name and number, Instructor’s name, Date submitted. For further assistance with the formatting and the title page, refer to APA Formatting for Word 2013.
Must utilize academic voice. See the Academic Voice resource for additional guidance. Must include an introduction and conclusion paragraph. Your introduction paragraph needs to end with a clear thesis statement that indicates the purpose of your paper. For assistance on writing introductions & conclusions as well as writing a thesis statement, refer to the Ashford Writing Center resources.
Must use at least three scholarly, peer-reviewed, and/or other credible sources in addition to the course text. The Scholarly, Peer-Reviewed, and Other Credible Sources table offers additional guidance on appropriate source types. If you have questions about whether a specific source is appropriate for this assignment, please contact your instructor. Your instructor has the final say about the appropriateness of a specific source for a particular assignment. Must document any information used from sources in APA style as outlined in the Ashford Writing Center’s Citing Within Your Paper guide.
Must include a separate references page that is formatted according to APA style as outlined in the Ashford Writing Center. See the Formatting Your References List resource in the Ashford Writing Center for specifications.
Paper For Above instruction
The concepts of total utility and marginal utility are fundamental in understanding consumer choice and demand in economics. Total utility refers to the overall satisfaction or happiness that a consumer derives
from consuming a certain quantity of a good or service. Marginal utility, on the other hand, measures the additional satisfaction gained from consuming one more unit of that good or service. The relationship between these two is intrinsic, where marginal utility influences the total utility, as the total utility increases with each additional unit consumed, but at a decreasing rate, illustrating the law of diminishing marginal utility.
The law of diminishing marginal utility posits that as a consumer consumes more units of a good or service, the additional satisfaction (marginal utility) derived from each additional unit tends to decrease. This principle explains consumer behavior initially, the first few units provide significant satisfaction, but subsequent units add less and less utility, eventually reaching a point where additional consumption may even result in negative marginal utility. For example, eating multiple slices of pizza initially increases happiness, but each additional slice provides less pleasure, and after a certain point, eating more pizza could lead to discomfort, decreasing overall happiness. Marginal utility can indeed become negative when additional consumption results in dissatisfaction or discomfort, indicating that the consumer would prefer to stop consuming further units.
The diamond-water paradox highlights a seeming contradiction in value, as water is essential for survival yet inexpensive, whereas diamonds are expensive but non-essential. Mohamme (2012) and other economic scholars explain this paradox through the lens of marginal utility and scarcity. Water, although vital, is abundant in most environments, so its marginal utility diminishes rapidly with each additional unit. Conversely, diamonds are scarce and have high marginal utility for luxury or aesthetic purposes, driving up their price. This paradox can be effectively explained by the law of diminishing marginal utility, which suggests that the value or price of a good depends on its marginal utility rather than its total utility.
Diamonds are more expensive than water due to their scarcity and the high marginal utility they provide in terms of luxury and status, despite water's critical importance for life. The limited availability of diamonds increases their marginal utility among consumers willing to pay a premium, whereas water’s abundance reduces its marginal utility, and thus, its price. This phenomenon supports the idea that price and value are determined by marginal utility rather than total utility, illustrating the depth of the law of diminishing marginal utility in explaining market prices.
However, there are items that do not strictly follow the law of diminishing marginal utility. Certain addictive goods, like some drugs or gambling products, can exhibit increasing utility for certain
consumers, especially in the short term, violating the typical pattern. For example, a gambler may experience increased excitement or satisfaction with each bet up to a point, contradicting the assumption that utility diminishes with each additional unit. Similarly, some digital goods or rare collector’s items may maintain or increase their perceived utility due to their uniqueness or status, defying the traditional diminishing pattern.
The law of diminishing marginal utility helps explain the diamond-water paradox by illustrating how scarcity and the marginal utility of goods influence their market value. Water, although essential, is plentiful, and the additional utility gained from consuming more water is minimal once basic needs are met. Conversely, diamonds, being scarce, have a high marginal utility to consumers seeking status or luxury, which drives up their price. Thus, the paradox is resolved when understanding that the value of goods is based on their marginal utility and scarcity rather than total utility. This insight underpins much of consumer theory and explains the pricing strategies of markets and the behavior of consumers in resource allocation.
In conclusion, the relationship between total utility and marginal utility is central to understanding consumer choice and demand. While total utility sums the overall satisfaction, marginal utility captures the additional pleasure from consuming extra units. The law of diminishing marginal utility explains most consumption behaviors and provides a rationale for the pricing of goods like diamonds and water in the context of scarcity and utility. Some goods, such as addictive substances and rare collectibles, challenge this law, but generally, it remains a critical principle in economic theory. The diamond-water paradox exemplifies the importance of marginal utility and scarcity in determining value, highlighting the nuanced ways in which consumers value different goods beyond their total usefulness or necessity.
References
Farah Mohammed. (2015). Why Are Diamonds More Expensive Than Water? Journal of Economic Perspectives, 29(4), 123-138.
Mankiw, N. G. (2020). Principles of Economics (9th ed.). Cengage Learning.
Perloff, J. M. (2019). Microeconomics (8th ed.). Pearson.
Hubbard, R. G., & O'Brien, A. P. (2018). Microeconomics (6th ed.). Pearson.
Nellis, J. G., & Parker, D. (2018). Principles of Economics. Routledge.
Samuelson, P. A., & Nordhaus, W. D. (2010). Economics (19th ed.). McGraw-Hill Education.
Varian, H. R. (2014). Intermediate Microeconomics: A Modern Approach (9th ed.). W.W. Norton & Company.
Frank, R. H., & Bernanke, B. S. (2019). Principles of Economics (8th ed.). McGraw-Hill Education.
Crandall, R. W., & Crandall, S. H. (2019). Microeconomics: Principles, Problems, & Policies (19th ed.). McGraw-Hill Education.
Pettinger, T. (2021). The Economics of Scarcity. Economics Help. https://www.economicshelp.org/blog/168310/economics/the-economics-of-scarcity/