Real-World Economics Review

from Lars Syll It should be part of the academic competences of trained economists to be able to be clear about what their models are for; what the models are about; what the models are capable of doing, and what not; how reliable the models are; what sorts of criticisms have been levelled against the models and how the criticisms have been responded; what alternative models there are; etc. The challenge is not easy, and it is clear that it has not been met with sufficient exuberance and...

from Lars Syll There have been over four decades of econometric research on business cycles … But the significance of the formalization becomes more difficult to identify when it is assessed from the applied perspective … The wide conviction of the superiority of the methods of the science has converted the econometric community largely to a group of fundamentalist guards of mathematical rigour … So much so that the relevance of the research to business cycles is reduced to empirical...

Source: piketty.pse.ens.fr/ideology.et

from Asad Zaman This continues from the previous post on the Downfall of Rhetoric in 20th Century Even though our goal is to explain how apparently objective looking statistics conceal arbitrary and subjective judgments, the path we take requires a detour through “epistemology”, or the theory of knowledge. Instead of the deep discussion provided by Putnam (2002, Collapse of the Fact/Value Dichotomy), we will take a shortcut, and look at how these philosophical debates and controversies...

from Lars Syll Ed Leamer’s Tantalus on the Road to Asymptopia is one of yours truly’s favourite critiques of econometrics, and for the benefit of those who are not versed in the econometric jargon, this handy summary gives the gist of it in plain English: Most work in econometrics and regression analysis is made on the assumption that the researcher has a theoretical model that is ‘true.’ Based on this belief of having a correct specification for an econometric model or running a...

“This stimulating book provides a clear account both of what Modern Monetary Theory entails and of the many objections to it. Its great value is that it will make readers have to think for themselves through many fundamental issues of macro-economic theory and policy.” – Charles Goodhart, London School of Economics Few concepts have attracted more publicity and less conceptual scrutiny as the term ‘complexity’ in economics. Therefore, this volume is a most welcome contribution.” –...

from Dean Baker and Jared Bernstein Though we don’t yet know the extent of its threat, a widespread coronavirus epidemic in the United States is increasingly possible. In addition to the downright scary health consequences, we think the virus will quickly do serious damage to the U.S. economy, reducing growth in at least the first half of this year, pushing up unemployment and possibly ending the historically long expansion. And we’re far from alone. The economic challenges posed by...

from Asad Zaman One of most effective and powerful among modern forms of rhetoric is the use of statistics to conceal the ancient methods for persuasion. How this is done is the main topic of our essay. In a sequence of posts ( Lies, Damned Lies, and Statistics, Subjectivity Concealed in Index Numbers, The Values of a Market Society, Cross-Country Comparisons of Wealth, and Purchasing Power Parity), I have tried to explain how the statistics we use conceal arbitrary value judgments. This...

from Lars Syll In their book Mastering ‘Metrics: The Path from Cause to Effect Joshua Angrist and Jörn-Steffen Pischke write: Our first line of attack on the causality problem is a randomized experiment, often called a randomized trial. In a randomized trial, researchers change the causal variables of interest … for a group selected using something like a coin toss. By changing circumstances randomly, we make it highly likely that the variable of interest is unrelated to the many other...

Despite growing diversity in research, the theory flow of economics, often referred to as neoclassical, continues to dominate teaching and politics. It developed in the 19th century as an attempt to apply the methods of the natural sciences and especially physics to social phenomena, In the search for an “exact” social science, social relationships are abstracted to such an extent that calculations are possible. The neoclassical economics department primarily poses a question: How do...