People rant and rave that the Congress can't keep the budget balanced. They blame political interests for causing the deficit. There is another force at work here. It is an unseen force, straight from the world of probability mathematics:
Assume a 9-member city council, where each councilman gets an equal vote. Let there be $100,000 available to be spent, and suppose there are enough small programs vying for that money that they total $120,000. Also assume that each councilman analyzes the available budget items before the meetings, and randomly decides what items to vote for and against. Let's look at a typical budget process, and what goes wrong:
How can this be? The answer is that the probability of an item passing is NOT 5/6.
Here is an analysis of the probability of a budget item passing the council. Since each councilman chooses randomly, the probability an item passes is found using the Binomial Distribution on a simple majority vote:
SUM [C(9,x) * (5/6)^x * (1/6)^(9-x), for x = 5 to 9] = .99065.
Google the Binomial Distribution to understand this probability function.
Use the mean of a Binomial Distribution to find the number of items that pass. Multiplying the budget by the probability of passing approximates this. If each item has a .99065 probability of passing, then the budget will be overspent, because $120,000 times .99065 is $118,878, or $18,878 over budget.
Another way to see this is to look at the votes in a table: Green values are within budget. Red values are over budget:
PROJECTS | VOTED TOTALS |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Proj # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||
Cost: | $20000 | $20000 | $20000 | $20000 | $10000 | $10000 | $10000 | $10000 | $120000 | |
COUNCIL MEMBERS | 1 | no | YES | YES | YES | YES | YES | YES | YES | $100000 |
2 | YES | YES | YES | YES | YES | no | YES | no | $100000 | |
3 | YES | no | YES | YES | YES | YES | YES | YES | $100000 | |
4 | YES | YES | no | YES | YES | YES | YES | YES | $100000 | |
5 | YES | YES | YES | YES | no | YES | YES | no | $100000 | |
6 | YES | YES | YES | no | YES | YES | YES | YES | $100000 | |
7 | no | YES | YES | YES | YES | YES | YES | YES | $100000 | |
8 | YES | YES | YES | YES | YES | YES | no | no | $100000 | |
9 | YES | YES | YES | YES | no | YES | YES | no | $100000 | |
Yes Votes: | 7 of 9 | 8 of 9 | 8 of 9 | 8 of 9 | 7 of 9 | 8 of 9 | 8 of 9 | 5 of 9 | 8 pass | |
Budgeted: | $20000 | $20000 | $20000 | $20000 | $10000 | $10000 | $10000 | $10000 | $120000 |
Even though each councilman planned for and voted for a balanced budget, the government overspent. Hence, these conjectures follow:
ALL of these conjectures assume a simple majority vote is taken on each budget item in sequence:
SPENDING CONJECTURE #1
If the amount of proposed spending is between 1 and 2 times the available revenue, and if all legislators plan all votes in advance for a balanced budget, then deficit spending will occur.
Notice here that the probability of a "yes" vote is between .5 and 1.
SPENDING CONJECTURE #2
If the amount of proposed spending is between 1 and 2 times the available revenue, then the first items voted on have a higher probability of passing, if all legislators change votes to ensure a balanced budget.
Note that as the budget fills up, the probability of "yes" votes goes down.
SPENDING CONJECTURE #3
When the amount of proposed spending is between 1 and 2 times the available revenue, the proportion of the budget overspent increases as the number of legislators increases.
The Binomial Distribution becomes less varied as the number of trials increases.
SPENDING CONJECTURE #4
When the amount of proposed spending is over twice the available revenue, almost no spending will occur, if all legislators plan all votes in advance for a balanced budget.
Notice here that the probability of a "yes" vote is between 0 and .5. (Of course, this works only until they notice that this happened.)
SPENDING CONJECTURE #5
When the amount of proposed spending is over twice the available revenue, the last items voted on have a higher probability of passing, if all legislators change votes to ensure a balanced budget.
Note that as the budget does not fill up, the probability of a "yes" vote goes up.
SPENDING CONJECTURE #6
When the amount of proposed spending is less than the available revenue, all legislators will add projects to the budget until the amount of proposed spending is more than the available revenue.
Here, the probability of a "yes" vote is exactly 1.
SPENDING CONJECTURE #7
When a bicameral (two house) legislature votes on each spending item separately, the probability the item is included in the budget is the product of the probabilities of the item passing each house.
This is the original intent of the US Constitution.
In the above example, if both houses have 9 members, then each house will have a probability of passing the item of .99065. So both houses together will have a probability of passing the item of:
.99065 * .99065 = .9813874225
This is better, but still way too high.
If an omnibus spending bill is prepared in advance by a committee, the same conjectures apply, but the probability of overspending is even greater in a bicameral legislature.
Assume the same conditions as above, that the two houses have 9 members each, and that each legislator again makes up his list of items to vote for in advance. Then the probability a legislator favors a particular spending item is again 5/6, and the probability that the lower house favors an item is:
SUM [C(9,x) * (5/6)^x * (1/6)^(9-x), for x = 5 to 9] = .99065.
So the probability that the lower house does NOT favor the item is .00935
(The probability of failure is 1 minus the probability of success.)
The probability that the upper house favors the item is also:
SUM [C(9,x) * (5/6)^x * (1/6)^(9-x), for x = 5 to 9] = .99065.
Again, the probability that the upper house does NOT favor the item is .00935
With an omnibus budget bill, BOTH houses must vote to AMEND the bill to remove the item, before it can be removed. This does NOT agree with the method prescribed in the Constitution. Only once outcome, instead of three, removes the bill. So the probability of removing a spending item is even lower:
.00935 * .00935 = .0000874225
The probability of the item passing is therefore:
1 - .0000874225 = .9999125775
This is even worse than any of the cases above.
SPENDING CONJECTURE #8
An omnibus spending bill in a monocameral (single house) legislature has the same spending probabilities that voting on individual spending items has.
The only real difference is that the house votes to remove an item rather than to add it.
SPENDING CONJECTURE #9
When a bicameral (two house) legislature votes on spending through an omnibus spending bill each spending item has a smaller chance of being removed.
Here the probability of removing the bill is lower, being the product of the probabilities of the item removal passing each house. This is definitely cheating the original intent of the US Constitution.
The omnibus spending bill violates constitutional intent.
First, the case of the constitutional method. Assume the following:
Then the probability that the bill passes is shown by the following table:
First House | Second House | Executive | Probabilities | Result | Spending |
---|---|---|---|---|---|
.05 Supermajority (2/3) | .05 Supermajority (2/3) | .50 Signed | .00125 | Pass | Probability of spending: .12625 |
.50 Vetoed | .00125 | Pass Override | |||
.45 Majority | .50 Signed | .01125 | Pass | ||
.50 Vetoed | .01125 | Fail Vetoed | |||
.50 Defeated | No Action | .025 | Fail Defeated | ||
.45 Majority | .50 Majority | Signed | .1125 | Pass | |
Vetoed | .1125 | Fail Vetoed | |||
.50 Defeated | No Action | .225 | Fail Defeated | ||
.50 Defeated | No Action | No Action | .5 | Fail Defeated |
With a probability of .12625 using the constitutional method, legislators have to really want to spend the money to spend it.
If the President always passes the budget, the problem simplifies to:
First House | Second House | Executive | Probabilities | Result | Spending |
---|---|---|---|---|---|
.50 Majority | .50 majority | 1.0 Signed | .25 | Pass (spent) | Probability of spending: .25 |
.50 Defeated | 1.0 Signed | .25 | Fail (not spent) | ||
.50 Defeated | No Action | 1.0 Signed | .5 | Fail (not spent) |
With a probability of .25 legislators still have to really want to spend the money to be able to spend it.
Now, the case of the omnibus budget bill method. Assume the following:
Then the probability that the money is spent on the item is shown by the following table:
First House | Second House | Executive | Probabilities | Result | Spending |
---|---|---|---|---|---|
.50 Majority | .50 majority | 1.0 Signed | .25 | Pass (not spent) | Probability of spending: .75 |
.50 Defeated | 1.0 Signed | .25 | Fail (spent) | ||
.50 Defeated | No Action | 1.0 Signed | .5 | Fail (spent) |
With the .75 probability of spending with the omnibus budget method, legislators must really want to not spend the money to not spend it.
SPENDING CONJECTURE #10
An omnibus spending bill by itself causes overspending.
The omnibus spending method is a sneaky way to bypass constitutional limitations on spending. It gives the committee writing the bill the power to overspend.
This entire section shows that no legislature can control spending by itself, without special processes to prevent spending into debt.
Now that we know the problem exists, what can be done about it? We know that, to get a balanced budget, these things must be avoided:
Here are some suggestions on what to do, with good and bad points of each:
INDEPENDENT VOTING METHODS
Use the Independent Voting System, a fair election method, with budget ballots in the legislature. Put ALL budget items on this ballot. The vote on all items must be simultaneous. Each legislator marks a ballot, putting YES, ABSTAIN, or NO for each budget item. Each ballot is signed by its legislator, and is kept secret until the vote is completed. Then the vote is tallied, and the votes cast by each legislator are released to the press. The score for each budget item is its YES tally minus its NO tally.
Then use at least one of the following methods:
ADDITIONAL METHODS
The following methods can add insurance that a deficit will not occur:
Using these measures can once again get our government spending under control.