The question I want to examine in this paper is if and how falsification as a method and Popper’s philosophy of science in general is appropriate for and applicable to economic research. To begin with I will start with a short introduction about Karl Popper and his philosophy. Then I will explain and evaluate the concept of falsification with its strengths and weaknesses and its use for science in general. Afterwards I will examine the influence and actual usage of falsification in economics in general to finally evaluate the chances and limits of the concept in this area of science.
It is often said that a significant characteristic of economic research is the strong staying power of theories, even with contradicting empirical evidence. Moreover, the scientific character of economic science is often questioned. In this context economic research is criticised for a lack of falsification or even a lack of falsifiability. But is it true and what does this mean?
The concept of falsification as a deductive method was brought up and made popular by the Austro-British philosopher Karl Popper in the 1930s. In contrast to the idea of gaining truth or principles through a lot of empiric observations (inductive method), he claimed that it is logically only possible to refute general statements by empirical observations. Consequently, Popper advocates for a method of research through trial and error. Science should use the method of falsification and for him the use of it is the demarcation criterion between science and non-science. Karl Popper’s methodological writings have been a cause of debate since the 1930s.
This scientific method is nowadays established particularly in natural sciences where you can tell more easily if a theory is wrong than in other disciplines. Economic research is part of the second group of disciplines, where we often find huge differences between Popper’s prescriptions and the common practice and where normative statements are often part of all considerations.
Table of Contents
1. INTRODUCTION
2. KARL POPPER AND HIS PHILOSOPHY OF SCIENCE
2.1 Karl Popper and his work
2.2 Philosophy of Science and the method of falsification
3. FALSIFICATION AND ECONOMICS
3.1 Karl Popper’s legacy in economics
3.2 Application and applicability of falsification
3.3 Broader view on Popper’s falsification
3.4 Implications for economic science
4. CONCLUSION
Research Objectives and Themes
This paper examines the appropriateness and applicability of Karl Popper’s philosophy of science, specifically the method of falsification, within the field of economic research, analyzing why economic theories often resist refutation despite empirical contradictions.
- The historical development and core principles of Karl Popper's critical rationalism.
- The fundamental asymmetry between inductive verification and deductive falsification.
- Evaluation of the "Popperian legacy" and the actual usage of falsification methods by economists.
- Case study analysis regarding the resilience of neoclassical theories and economic modeling.
- Recommendations for fostering a more critical and flexible environment in modern economic science.
Excerpt from the Book
3.2 Application and applicability of falsification
Thus a lot of economists talk about Popper and seem to be interested in his work but on the other side we maybe have to acknowledge that only “few economists seem to have fully appreciated the radicalism of Popper’s approach. When we compare the practice of many economists against some of Popper’s prescriptions we often find wide differences” (Pheby 1988, p. 22).
To shortly demonstrate that Popper’s demands are often ignored I will exemplarily take a look at two common theories or models of mainstream economics, the Marginal Productivity Theory and the Solow Growth Model.
The Marginal Productivity Theory (MPT) states that workers will be paid more when their productivity is higher, that they are paid what they are worth for a company. Wages are thus positively correlated to the productivity of the workers. But as we can see in Figure 1, since the 1970s this correlation is not true anymore (cf. Mishel 2012). This evidence seems to prove the theory wrong but nevertheless it is still part of economic science and repeated in textbooks and taught to students all over the world.
The Solow Growth Model explains economic growth and basically predicts that less developed countries will catch up with developed countries in terms of GDP, because when a country has a low level of capital stock, the potential returns to investment are high. When the capital stock increases, the returns to investment decrease and the growth rate of a country flattens. Therefore, all countries will in the long term meet at a similar growth rate. The model was often criticised and its predictions were often proved wrong with empirical data because countries did not develop as the model expects (cf. DeLong 1988). The model then was often adjusted, extended and its implications limited to certain conditions.
Summary of Chapters
1. INTRODUCTION: This chapter outlines the critique regarding the lack of falsification in economic research and establishes the paper's goal to evaluate Popper’s applicability to economics.
2. KARL POPPER AND HIS PHILOSOPHY OF SCIENCE: This section provides a biographical overview of Popper and details his core philosophical concepts, specifically the rejection of induction in favor of deductive falsification.
3. FALSIFICATION AND ECONOMICS: This chapter explores the popularity of Popper in economics, challenges the applicability of his methods using specific models, and discusses the structural reasons for the lack of a critical environment in the discipline.
4. CONCLUSION: The concluding chapter synthesizes findings, noting that while strict "naïve falsification" is inapplicable, Popper's broader guidelines for a critical scientific environment remain beneficial for economics.
Keywords
Karl Popper, Falsification, Economics, Critical Rationalism, Methodology of Economics, Inductive Method, Deductive Method, Marginal Productivity Theory, Solow Growth Model, Neoclassical Theory, Scientific Demarcation, Philosophy of Science, Economic Research, Immunizing Strategies, Empirical Evidence.
Frequently Asked Questions
What is the core subject of this term paper?
The paper evaluates the relevance and practical application of Karl Popper’s philosophy of science, particularly his concept of falsification, within the discipline of economics.
What are the primary themes discussed in the work?
Key themes include the tension between natural and social sciences, the methodology of economics, the resilience of established economic theories, and the potential for a more critical scientific culture in economics.
What is the main research question?
The author investigates whether Popper’s falsification method is an appropriate and applicable framework for conducting modern economic research.
Which scientific methodology does the paper focus on?
The paper focuses on Popperian falsification, contrasting it with the inductive methods often criticized for failing to adequately test economic hypotheses.
What does the main body of the paper cover?
It covers the history of Popper's thought, the theoretical conflict between verification and falsification, real-world examples of economic models resisting falsification, and the institutional barriers to a critical environment.
Which keywords best describe this research?
Essential keywords include Falsification, Karl Popper, Critical Rationalism, Neoclassical Economics, and Economic Methodology.
How does the author analyze the Solow Growth Model in terms of falsification?
The author uses the Solow Growth Model as an example of a theory that persists despite empirical evidence contradicting its predictions, demonstrating how economists often adjust models rather than abandon them.
What is the "Reinhart and Rogoff data scandal" mentioned in the text?
It is cited as a prime example of the lack of a critical environment in economics, where faulty research findings were widely accepted and used for policy justification before being debunked.
Why does the author conclude that economics struggles to adopt Popperian methods?
The author argues that economics is a complex social science with different motivations (e.g., policy advice, professional pressure to publish) that make strict falsification difficult to implement.
- Arbeit zitieren
- Simon Valentin (Autor:in), 2016, Falsification in Economics. Is Karl Popper's Philosophy of Science Applicable to Economic Research?, München, GRIN Verlag, https://www.grin.com/document/321581
