– [Instructor] Two terms
that you’ve likely heard in the context of government
spending and budgets and borrowing are the
terms deficit and debt. And they can get a little bit confusing because they’re associated
with borrowing and budgets and spending and they both start with D. And they are related but
they mean different things. A deficit is a situation
where you spend more than you are taking in. So from a government point of view, this would be a situation
where a government spends more, in a year than they take
in, in revenue in that year. So in a year, or budgetary cycle spending more, spending more than taking in. And that difference, the amount that you are
over spending that year is going to be a deficit. A debt on the other
hand is the total amount that you owe. So total amount, amount owed. Now these are clearly related. Let’s say in, let me make a, a hypothetical government here. So let’s say year one, year two, year three, year four and
I’ll go up to year five. And let’s think about the deficit, the deficit each year and let’s think about the debt each year. So let’s say in year one
our hypothetical country, we overspend by 200, I’ll do everything in billions of dollars. So we overspend by 200 billion dollars. We run a 200 billion dollar deficit. Well assuming that the
debt was zero before that, we’re now going to owe
people 200 billion dollars. I’m assuming everything
here is in billions. Alright, so let’s say that next year, we run a deficit of a
hundred billion dollars. Well now we owe the
money that we owed before plus another hundred billion dollars. So this would be 300 billion and then you could see where this goes. If in year three we run another deficit of let’s say, let’s say
we spend a lot this year. A lot more than we take in, so we have a deficit of 500 billion. Well then that will just add to our debt. So that’s now going to be 800 billion and of course you can pay down debt. In order to pay down debt you would run a surplus in a year which you could view
as a negative deficit. So let’s say that this
year it’s negative 100. So normally people wouldn’t say this is a negative 100
billion dollar deficit. Normally they would
say that the government ran a 100 billion dollar surplus but let’s say they run that surplus, they pay down the debt. Well so now, they would pay it down, so now we’re at, we owe 700 billion and of course you could have a year where you have a
completely balanced budget. You’re not running a surplus or a deficit and in that case your
debt would stay the same. Now some of y’all might be
wondering about the interest but the interest on the debt, that’d be part of the budget. So we thought about that
already on whether we’re running a surplus or a deficit. To make this a little bit more clear in the context of the United States here is a chart that shows the
total deficits and surpluses for the United States from the late 1960’s all the way to near the present time but then it projects out a decade and these projections, you should always take
with a grain of a salt. Whenever these bars are going downwards those are years in which our government is running a deficit. The years where we are above the line, those are where we are
running a budget surplus, where the government actually took in more than it spent. So big picture, deficits and surpluses are talking about how much
you are over or underspending in a given year while debts are talking
about your accumulated amount that you owe and to make that clear we can take a look at
the total public debt in the United States and this once again, goes from the 1970’s all
the way to near the present. And you can see that the debt has accumulated in a pretty big way. It’s approaching, this says 20 million but you have to look at this. It says millions of dollars. So this is 20 million million or 20 trillion dollars of debt. This is how much the United
States Government owes but some of you might argue that “Hey look, the economy
has grown a good bit. “So what really matters
is how much do you owe “as a percent of GDP?” So this shows as a percentage of GDP, it’s not quite as dramatic but our government debt is now about equal to our annual GDP. So if you were to make an
analogy to your personal life, if you say made, \$100,000 in a year this is like having also \$100,000 of debt. Now an interesting question is, what are the pros and the cons of running a deficit in a given year? Which is going to add to the debt. Well some of the arguments in favor of sometimes running a deficit which will add to the debt is that it allows a government to do counter-cyclical fiscal policy, or if you’re into a recession,
to have an expansionary, expansionary fiscal policy which we’ve talked about in other videos often involves maybe lowering taxes and increasing spending and that could allow the government to maybe make a recession less severe which might allow everyone to
be better off in the long run and these things are all debated. Now the cons are easier to think of. One could imagine that at some point the debt becomes unsustainable. Debt unsustainable and
there are definitely examples of other countries that have run such large debts that they could not even
service the interest. Just remember whether
it’s just you individually or a government, when you borrow money you have pay interest. At some point the interest could become so significant that the
government can no longer afford to pay it. And even if a government can
pay the interest on the debt that money that’s being used for interest could have otherwise been
used for other things. Another con of running large deficits which could lead to
large accumulated debts is that it can affect interest rates in the broader market. So you could lead to an increase, increase in interest rates. Interest rates. When we studied the money market we would see that hey, the more that the government is out there trying to borrow money, that’s goIng to shift
demand in the money markets to the right and if the interest rates increase that could lead to, what we’ve talked about before, the idea of crowding out. Or the crowding out effect where because of increased interest rates, fewer potential private borrowers are gonna go and borrow money which they might use to
go out and invest things. So those are, these are
all very interesting things to think about but the big takeaway here is to not get confused
between deficit and debt. Deficits and surplus
refer to how much you are over or underspending in a given year. Debt is the total amount you owe.