Dynamics of Output and Demand in a Growing Economy

An earlier post discussed some of the dynamics of output and demand implicit in the income-expenditure model. Attention was confined to a simplified economy that was stationary other than when adjusting to one-off exogenous changes in demand. The present post considers a continually growing economy in which autonomous demand changes over time. The discussion is kept simple by treating all demand other than private consumption as exogenous. The model can be extended to include additional endogenous demand components – such as investment or job-guarantee spending – but this is left for another time.

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Growth is Good?

Whenever the topic of economic growth is broached, there is a common and understandable reaction along the lines that growth is ecologically unsustainable or socially harmful. Since one of the preoccupations of this blog is demand-led growth, it is perhaps worth pausing to reflect on the appropriateness of the topic. This can be broken down into two parts. Why consider growth as such? And why emphasize the possibility that growth is demand led?

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From the Fiction Files – “Easy Money Anytime”

I gazed out the eighth-story window of a humble – bashful, even – apartment at crowds of pedestrians on the street below, feeling drawn to those crowds, blissfully lost in their collective thoughts, basking in a sense of universal oneness and kindness toward everyone and everything. I held a specially designated Study Mug to my chest, nestled just so, withholding for a time the pleasure of that first sip. At last I relented, and gave in to sweet temptation, raising the Mug to my lips.

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Disequilibrium Dynamics of Output and Demand

Theoretical studies of output and growth often focus on the behavior of equilibrium output. The usefulness of this approach depends on there being a tendency for actual output to converge on equilibrium output. With such a tendency present, studying the behavior of equilibrium output will tell us something about the behavior of actual output. It is therefore of interest to spell out the process by which an economy in disequilibrium is thought to tend toward equilibrium.

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A Simple Framework for Analyzing a Demand-Led Economy

I have been thinking about a simple depiction of a demand-led economy. Mostly it draws on standard Keynesian macro, Kalecki’s work on cycles and growth, and supermultiplier models developed within the surplus approach. The main focus is on the evolution of a demand-led economy through time. The present post simply sketches the basic framework and provides some context. Perhaps in the future certain aspects can be fleshed out.

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A Notion of Demand-Led Growth

A key purpose of demand-led growth theory is to extend the ‘principle of effective demand’ to contexts in which productive capacity is best considered variable rather than fixed. The central idea is that, over any time frame, it is demand that determines output, and demand-led variations in income that adjust planned leakages to planned injections. Once it is acknowledged that capacity is variable, it becomes clear that the adjustment of output to demand, and planned leakages to planned injections, can be achieved not only by utilizing existing capacity more fully, but by expanding capacity through investment.

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If it’s Doable, it’s Affordable

Modern Monetary Theory (MMT) continues to make inroads into the mainstream discourse with the appearance of an article by Youssef El-Gingihy in The Independent Online. The article features MMT in connection with the new book by Bill Mitchell and Thomas Fazi, Reclaiming the State. At its recent rate of dissemination, MMT may transition from heterodox to mainstream ahead of expectations.

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Some Macro Effects of a Job Guarantee

A recent post considered one way of including a job guarantee in the income-expenditure model. Doing so makes it possible to represent various macro effects of a job guarantee within the model. An obvious effect is that the program would deliver a degree of demand stabilization. An effect that is perhaps not quite so obvious is the way in which a job guarantee would ensure supply-side changes in the economy automatically impact on demand, actual output and employment. Before illustrating a few of these effects, the modified income-expenditure model will be briefly outlined and tailored to present purposes. A fuller discussion of the model is provided in the earlier post.

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DUDE WTF UMM… – Currency Issuers and Users

Welcome to the very first (and possibly last) “Don’t Understand, Don’t Even Want To F___ing Understand Modern Money” post, otherwise known as a DUDE WTF UMM… post. This is for those of us who have no desire to consider economics at even an elementary level but who are tired of others exploiting our indifference and blasé attitude for their own dubious ends. Just because we don’t know diddly-squat about economics and are proud of it, this should not disadvantage us in life. What we need are some easy ways to spot when we are being led astray, without too many boring details.

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