59:(1936) introduces the concept of stylization as follows: "To get a clear view, stylisation is indispensable. The many phenomena must be grouped in such a way that the picture becomes clear, yet without losing its characteristic traits. Of course every stylisation is a hazardous venture. The art of the social economist's work lies in this stylisation. Some stylisations have been unwieldy, others have been unrealistic. But stylisation is essential. The alternative is barrenness."
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problem that "facts as recorded by statisticians, are always subject to numerous snags and qualifications, and for that reason are incapable of being summarized", he suggests that theorists "should be free to start off with a stylised view of the facts – i.e. concentrate on broad tendencies, ignoring individual detail". With respect to broad tendencies that result from such a process, Kaldor coins the term "stylized facts".
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Still, some possible approaches to derive stylized facts from empirical evidence have been suggested, such as surveying experts, statistically analysing large data sets (especially suitable for financial markets) or aggregating both qualitative and quantitative data from different empirical methods by following a systematic process.
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Already in the original paper, Kaldor used his stylized facts of economic growth to argue in favor of his suggested model in comparison to older neoclassical models of economic growth. This idea has been highlighted subsequently by Boland, that the advantages of one model over the other can be set in
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Already in an early response Solow pinpointed a possible problem of stylized facts, by stating that "there is no doubt that they are stylized, though it is possible to question whether they are facts". The criticized practice of deriving stylized facts ad hoc is still quite prevalent in economics.
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a clear perspective via the reference of the stylized facts the respective models can explain. Additionally, stylized facts can be used to look "under the hood of models", i.e. be used to validate assumptions of model in a focused way. This can be of particular importance in more complex models.
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in the context of a debate on economic growth theory in 1961, expanding on model assumptions made in a 1957 paper. Criticizing the neoclassical models of economic growth of his time, Kaldor argues that theory construction should begin with a summary of the relevant facts. However, to handle the
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The full text of
Tinbergen's 1936 paper, originally written in Dutch, is available in English as 'An economic policy for 1936', in Klaassen et al., eds. (1959, pp. 37–84). There the quoted phrases are found on p. 41, in a somewhat different wording. This translation is taken from Don, H. and
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is a simplified presentation of an empirical finding. Stylized facts are broad tendencies that aim to summarize the data, offering essential truths while ignoring individual details. Stylized facts offer strong generalizations that are generally true for entire populations, even when the
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A prominent example of a stylized fact is: "Education significantly raises lifetime income." Another stylized fact in economics is: "In advanced economies, real GDP growth fluctuates in a recurrent but irregular fashion".
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begins from stylized facts. Furthermore, the considerable potential of
Stylized Facts for Information Systems research has been investigated and discussed in recent years.
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instead of higher-paid fields. Nonetheless, broadly speaking, people with more education tend to earn more, so the above example is true in the sense of a stylized fact.
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Stylized facts are widely used in economics, in particular to motivate the construction of a model and/or to validate it. Examples are:
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However, scrutiny to detail will often produce counterexamples. In the case given above, holding a PhD may
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lifetime income, because of the years of lost earnings it implies and because many PhD holders enter
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Cont, Rama (2001). "Empirical properties of asset returns: stylized facts and statistical issues".
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Cont, R. (2001). "Empirical
Properties of Asset Returns: Stylized Facts and Statistical Issues".
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When describing what is generally regarded as the first econometric macro model ever developed,
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Kaldor, Nicholas (1961). "Capital
Accumulation and Economic Growth". In Lutz; Hague (eds.).
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383:"Stylised Facts and the Contribution of Simulation to the Economic Analysis of Budgeting"
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Verbruggen, J. 2006. Models and methods for economic policy;60 years of evolution at CPB
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Boland (1987). "Stylized Facts". In
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Kahn, James A. (1987). "Inventories and the
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431:(Paperback ed.). New York, NY: Oxford Univ. Press. p. 2.
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Heine, Bernd-O.; Meyer, Matthias; Strangfeld, Oliver (2005).
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generalization may not be true for individual observations.
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The term "stylised facts" was introduced by the economist
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Education is positively correlated to lifetime earnings
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Houy, Constantin; Fettke, Peter; Loos, Peter (2015).
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