Real-World Economics Review

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from Lars Syll Many American undergraduates in Economics interested in doing a Ph.D. are surprised to learn that the first year of an Econ Ph.D. feels much more like entering a Ph.D. in solving mathematical models by hand than it does with learning economics. Typically, there is very little reading or writing involved, but loads and loads of fast algebra is required. Why is it like this? … One reason to use math is that it is easy to use math to trick people. Often, if you make your...

from Peter Radford Let the dust settle. Absorb the information embedded in the results. Take a deep breath and avoid partisan primping. First: this election was insanely expensive.  Candidates seeking election to Federal office spent an estimated $8.9 billion.  Their state level counterparts spent a further $7.8 billion.   Second:  all that expenditure had little effect.  Sure, the House changed hands, but by the slimmest of margins, and for all the...

Summary: to understand inflation we should not use the neoclassical ‘one good, one worker, one sector, one piece of physical capital’ or Y = f(K,L) concept of production. We should use a concept looking at nominal production (Y(n)) with multiple interrelated sectors (‘S’), multiple products and capital conceptualized not as a physical entity but as ownership rights of land (including natural resources), depreciable capital and ‘non produced’ capital like patents and marketing rights:...

from Lars Syll Both approaches to DSGE macroeconometrics (VAR and Bayesian) have evident vulnerabilities, which substantially derive from how parameters are handled in the technique. In brief, parameters from formally elegant models are calibrated in order to obtain simulated values that reproduce some stylized fact and/or some empirical data distribution, thus relating the underlying theoretical model and the observational data. But there are at least three main respects in which...

from Imad Moosa   The spread of the virus has been aided by the neoliberal drive to privatise everything under the sun, including healthcare. Forty years of the privatisation of public health institutions (allegedly in the name of efficiency and for the benefit of consumers) has resulted in a disastrous situation as private healthcare providers have no commercial interest in preparing for or preventing emergencies. The spread has been aided by the lack of staff and material...

from John Komlos  Stress, the body’s biological response to external threats, is generated in the economic system as a negative externality through countless pathways, that include long working hours, being underpaid, being evicted, income insecurity, unhealthy work environments, tight deadlines, being fired, long spells of unemployment, underemployment, low income relative to the median, reduction of earnings, unexpected medical expenses, college tuition, being victim of predatory...

from Lars Syll Chameleons arise and are often nurtured by the following dynamic. First a bookshelf model is constructed that involves terms and elements that seem to have some relation to the real world and assumptions that are not so unrealistic that they would be dismissed out of hand. The intention of the author, let’s call him or her “Q,” in developing the model may be to say something about the real world or the goal may simply be to explore the implications of making a certain...

from Philip George What are vectors? . . . we defined a vector as a quantity having both magnitude and direction and represented it by an arrow. This makes sense in Euclidean 3-dimensional space. But in higher dimensions the idea of direction is not intuitive and we need a more formal definition that is consistent with the definition in three dimensions. In mathematics, an object is defined as a vector if it is an element in a vector space. This seems a circular...