With the midterm elections
approaching and the Democrat’s War on Poverty revving up there is no doubt that
distinguished economists of all stripes will weigh in on how the war should be
waged. Expect a complete lack of
consensus.
To the extent that a formalized
canon of economics exists, supply and demand analysis rests comfortably at the top
of the stack. Many other more advanced
economic models rely on this foundation and the explanatory power of supply and
demand analysis, while imperfect, is powerful.
This simple model encompasses many important concepts including scarcity,
elasticity (of supply and demand), substitution, competition and much more.
While the world’s most
respected economists may orbit strata well beyond such elementary principles, the
layperson can gain valuable insight from the application of these tools. Most introductory Microeconomics texts
include several common, noncontroversial examples of how to apply supply and
demand analysis. These examples
typically include price controls, subsidies, minimum wages and various kinds of
taxes, many of the same policies that Democrats are advocating as part of their
war on poverty.
Despite some well-known
limitations of supply and demand analysis, such as the assumption of perfect
competition, conclusions drawn from such analysis often align closely with what
is observed in real markets, especially when realistic estimates of elasticity
can be made. It would be a stretch to
call the laws of supply and demand immutable, but given the near limitless
diversity of theories, models and opinions in the field of economics, it is about
as close as it gets.
Following are three common
examples that would likely be encountered in the first 3-4 weeks of any
freshman Microeconomics course, along with a generalized supply and demand
graph that may be used with each example.
The demand curve slopes down and to the right because as the price of
something drops, the quantity of the product demanded increases. The supply curve slopes up and to the right
because at higher prices, producers will want to supply more.
Minimum Wage: As with any market there will be a price, P0,
where supply and demand are in equilibrium.
If this price is arbitrarily raised to P2 however, through a minimum
wage law, the quantity of unskilled labor demanded will be lower, and will
correspond with d2. Human substitutes
such as self-service kiosks will be employed more frequently. More people will also wish to work at this
higher wage, represented by s2. The
difference between d2 and s2 represents a job shortage created by the minimum
wage.
Personal Income Tax: The creation of or an increase in personal
income taxes will shift the entire supply curve for labor from supply to
supply2. This leads to a new (higher)
equilibrium price for labor, E2. The
price for labor increases as workers and employers share the burden of the
higher tax rate. Employers will pay more
and employees will earn less. The higher
labor costs will cause employers to seek alternatives to hiring, such as
automation or outsourcing. The reduced
wages will also reduce incentives for some employees to work, particularly when
the gap between government transfer payments and employment income becomes
narrow. Lower quantities of labor will be
demanded because the price of labor is higher.
Price Controls: Consider a price control for doctors
performing knee replacements. Assume
that insurance companies are the payers and independent doctors are the
providers. If the government imposes a
price ceiling below the current market price for this surgery, from p0 to p2
for example, the quantity of surgeries supplied will decrease from E to
s1. Doctors will choose to work less,
retire early or pursue other types of work in response to the lower price. Insurance companies will encourage more knee
replacements instead of other treatments so the quantity of knee replacements
demanded will increase. A shortage of
knee replacement services, between s1 and d1, is created.
Under the Affordable Care
Act, the Independent Payment Advisory Board has power to set prices for
Medicare payments. Price controls are
the board’s most powerful tool for accomplishing their mission of controlling
medical spending growth. Absurdly, IPAB
is prohibited from making "any recommendation to ration health
care”. Markets are entirely capable of rationing
themselves in response to price controls, and will restrict the quantity of any
good or service supplied in response to an artificially low price. Many lawmakers wish to take this a step
further and remake the US healthcare system as a single payer system, where all
prices are set by bureaucrats rather than by the market. What happens in a single payer system is
completely predictable. Non-financial
costs such as long delays for care, denial of care, lower quality of care and
medical tourism emerge as a result of the shortages created by price controls.
Ingenuity and
resourcefulness recede in the shadow of big government as the supply curves for
labor, innovation and investment all get pushed to the left. The deceptive
sense that the government will take care of everything can easily lead to
complacency and a feeling that we will be ok whether we work hard or not,
whether we plan for the future or not. This is easy to sell because we would
like for this to be true, why not. Such promises are as old as civilization
itself however and the result is always the same. Power is centralized,
promises are broken and freedom and prosperity are lost.
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