Marginal Propensity To Invest

Categories: Econ, Investing

You’ve probably met the popular kids of Propensity: there’s the marginal propensity to consume (MPC) and the marginal propensity to save (MPS). But don’t forget about the marginal propensity to invest (MPI), an often underestimated one.

The marginal propensity to invest is a measure of the change in investment as the result of a change in disposable income. If a country gains $1 more dollar of income than before, which leads to a $0.20 increase in investments, the MPI is 0.2.

The marginal propensity to consume is kind of at odds with the marginal propensity to consume. If people are consuming more, they’re probably investing less, and vice versa...so a win for MPI is a loss for MPC, and a win for MPC is a loss for MPI. Something like our current political parties.

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Econ: What is Personal Consumption Expen...3 Views

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And finance Allah shmoop What is personal consumption expenditure Well

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consumer spending makes up a big part of the U

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S economy an estimated two thirds of it to be

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exact Tracking consumer spending is a key to tracking the

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overall economy Will the personal consumption expenditure is the formal

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way to measure consumer spending Right So first what is

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it consumer spending Example you work at Smooshy Love No

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not that kind of company It's a company that makes

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heart shaped pillows people by the pillows for you know

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birthdays and Valentine's Day as a reward for getting their

00:40

annual cardiovascular checkups You know stuff like that All the

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money spent on the pillows pays your salary Customers pace

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mushy love for the pillows Smoochy Love gives some of

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that money to you in the form of a paycheck

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Then your paycheck allows you to buy a host of

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other consumer goods You buy food and gas and clothes

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and electronic toothbrushes and Christmas tree shaped pillows for holiday

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gifts and or Arbor Day decorations You know stuff like

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that Some of the money you spend on this stuff

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eventually goes toe workers at the companies who make those

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products These workers then spend that cash on other stuff

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and so on It's the economic circle of life all

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right well that consumer spending cycle is what represents two

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thirds of the economy something like nine trillion dollars a

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year So the spending on consumer goods is crucial Economists

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and policymakers need a way to track all that spending

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It allows them to see how things are going and

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to make predictions about overall economic growth Enter the P

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C E or personal consumption expenditure Tracker Here It's the

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fancy name for all that money you spend on knickknacks

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and doodads and services to like you know consumer spending

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includes stuff like oil changes You get for your car

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and doctor visits where you turn your head and cough

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and you know a back hair Electrolysis Personal consumption expenditure

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is the official stat for measuring consumer spending Any economy

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in the US The figure is compiled monthly by the

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Department of Commerce Will the same report also includes details

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on personal income and disposable personal income Two measures of

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you know how much money people make right So the

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government looks at how much smooshy love is paying you

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and how much of that money your spending while the

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PC also helps to track changes in price's Along with

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the income and spending data the government issues what's called

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the P C E price index It shows how much

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prices for consumer goods have changed during that period Well

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the index measures retail inflation basically or deflation of prices

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go down smooshy love overproduced heart pillows ahead of Valentine's

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Day Now it's March and they've got a warehouse full

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of them Then they drop prices Just a blowout inventory

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Well that drop in prices would show up in the

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PC price index It's mushy Love is now facing lower

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revenue for this month Own theory Maybe they cut your

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salary which then shows up in the government report in

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the personal income section Now you have less money to

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buy other goods and you spend less on clothes and

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back hair electrolysis and well that lower spending shows up

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in the PC east at the Now We gotta go

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find someone else to tweeze are back hair with a 00:03:12.688 --> [endTime] discount Get out

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