Back to homeEconomics · High School Year 1 · Change subject
Start for free
Prep 1 · Economics
Economics and economic aggregates · The State and taxes

Government Spending and Taxes

You pay $\$5$ for a Metro ticket, but running that train costs much more. Public schools, IMSS clinics, street lighting, and highways aren't paid for when you use them either. They are financed in advance, by everyone together, through taxes. Who collects that money, what is it spent on, and what happens if the way it's collected changes? That's what we look at here.

The Public Budget

A budget reads like a bar chart or a pie chart: each item is a percentage of the total. The items always add up to $100\ \%$. If one is missing, you find it by subtraction.

Bar chart with the percentage breakdown of a municipality's budget: education 35, health 25, services 25, and culture and other 15. % of the budget 35education 25health 25services 15culture and other
Practice★☆☆Not started
Make a list of six things paid for with public money that you have used this month (high school, the local health clinic, street lighting, the library, the park, the…

Make a list of six things paid for with public money that you have used this month (high school, the local health clinic, street lighting, the library, the park, the police) and explain what would happen if each was paid for directly per user: who could afford high school or an operation?

Solve
Practice★☆☆Not started
The figure shows how the municipality of Puebla allocates its budget across its four main categories, as percentages. The figure for culture and sports is covered. a)…

The figure shows how the municipality of Puebla allocates its budget across its four main categories, as percentages. The figure for culture and sports is covered.

% 10 20 30 40 30 25 20 ? education healthcare services culture
  1. a) Calculate what percentage of the budget goes to culture and sports, knowing that the four categories total $100\ \%$.
  2. b) If the total budget is $\$40\,000\,000$, calculate how many pesos go to each of the four categories.
Solve
Practice★★★Not started
The municipality of Puebla spends $200$ million pesos per year: $80$ on education, $50$ on healthcare, $30$ on public services (cleaning, police), $20$ on culture and…

The municipality of Puebla spends $200$ million pesos per year: $80$ on education, $50$ on healthcare, $30$ on public services (cleaning, police), $20$ on culture and sports, and $20$ on debt and maintenance. It collects $184$ million in taxes and fees.

  1. a) Calculate the annual deficit (the overspending) and explain how it can cover it.
  2. b) A political party proposes reducing taxes by $10\ \%$ without changing spending: calculate the new tax revenue and the new deficit.
  3. c) Present two options to close that gap (spend less, raise other taxes, take on more debt) and defend your choice with arguments.
Solve

Direct and Indirect Taxes

Diagram that classifies taxes into direct, which are charged on what is earned or owned, and indirect, which are charged on what is spent. Directcharged on whatyou earn or own Indirectcharged on whatyou spend

In Mexico the general VAT (IVA) rate is $16\ \%$ (in the northern border region, $8\ \%$). The SAT (tax authority) collects it and the SHCP (Ministry of Finance and Public Credit) administers it. Some products, like tortillas, milk, and medicines, have a $0\ \%$ rate or are exempt.

Practice★☆☆Not started
Direct taxes tax what you earn or own; indirect taxes tax what you spend. Classify these taxes as direct or indirect: (a) income tax (ISR) deducted from a paycheck; (b)…

Direct taxes tax what you earn or own; indirect taxes tax what you spend. Classify these taxes as direct or indirect: (a) income tax (ISR) deducted from a paycheck; (b) VAT on a video game; (c) corporate tax, paid by a company on its profits; (d) VAT on bread; (e) vehicle tax for a car. Then explain the difference in your own words.

Solve
Practice★★☆Not started
A game console costs $\$7\,000$ excluding VAT, and the standard rate for this tax is $21\ \%…

A game console costs $\$7\,000$ excluding VAT, and the standard rate for this tax is $21\ \%$.

  1. a) Calculate how many pesos of VAT are paid and the final price of the console.
  2. b) In another store, the same console displays $\$8\,470$ with VAT already included: calculate what portion of that price is VAT.
Solve
Practice★★★Not started
"VAT is the most unfair tax: a rich person and a poor person pay the exact same when buying sneakers." a) Explain what truth lies in this statement (it is proportional:…

"VAT is the most unfair tax: a rich person and a poor person pay the exact same when buying sneakers."

  1. a) Explain what truth lies in this statement (it is proportional: the same $21\ \%$ for everyone) and why it weighs more heavily on those with lower incomes.
  2. b) Qualify it: in Mexico, basic foodstuffs and medicines have a reduced or preferential rate of VAT, and income tax is progressive; explain how this partially compensates.
  3. c) State a reasoned position: would you change anything about VAT? State what and why.
Solve

ISR by Brackets: A Progressive Tax

Graph of the two brackets of an example tax: 10 percent up to 10 thousand pesos a month and 20 percent on the rest. rate % 10 %first 10,000 20 %whatever goes above 10,000

Compare this with a proportional tax of $15\ \%$ for everyone. Someone who earns $\$8{,}000$ would pay $\$1{,}200$ (more than the $\$800$ under the bracket schedule). Regina would pay $\$2{,}400$ (more than her $\$2{,}200$). On the other hand, someone who earns $\$30{,}000$ would pay $\$4{,}500$ under the proportional tax and $1{,}000 + 20{,}000 \times 0.20 = \$5{,}000$ under the bracket schedule. The progressive schedule favors those who earn less and puts a heavier load on those who earn a lot; to know who wins or loses, always compare the pesos paid under each rule.

Practice★★☆Not started
An imaginary tax operates in brackets: $10\ \%$ is paid on the first $\$20\,000$ of monthly salary, and $20\ \%$ on anything above $\$20\,000$. Ana earns $\$18\,000…

An imaginary tax operates in brackets: $10\ \%$ is paid on the first $\$20\,000$ of monthly salary, and $20\ \%$ on anything above $\$20\,000$. Ana earns $\$18\,000$ per month and Alberto, $\$40\,000$.

  1. a) Calculate how much each person pays per month.
  2. b) Calculate what percentage of their total salary each person pays and explain why this tax is called progressive.
  3. c) Compare this with a flat-rate (proportional) tax of $15\ \%$ for everyone: who would win and who would lose?
Solve

Gross Pay, Net Pay, and Withholdings

Pay stub diagram: from gross pay, the IMSS contributions and the ISR withholding are subtracted to arrive at net pay. Grossearnings − IMSS contributions− ISR withholding Netwhat you receive

In Mexico there is no general federal unemployment insurance: the contributions don't pay a benefit for losing your job. They finance health services, disability leave, and the pension in your Afore.

Practice★★☆Not started
Here is the simplified payslip for Teo's mother: gross salary $\$28\,000$, Social Security contributions $\$1\,900$, income tax (IRPF) withholding $\$2\,800…

Here is the simplified payslip for Teo's mother: gross salary $\$28\,000$, Social Security contributions $\$1\,900$, income tax (IRPF) withholding $\$2\,800$.

  1. a) Calculate the net salary, the amount that actually enters the bank account.
  2. b) Explain what the contributions are used for (unemployment, pensions, healthcare) and what the income tax withholding pays for.
  3. c) Her work colleague earns the same gross salary but has $\$3\,600$ withheld for income tax: give a possible explanation (family situation, number of children) and calculate the difference in net salary between them.
Solve

Taxes That Correct Externalities

A tax of this kind has two goals that aren't always achieved at the same time: raising revenue and changing consumption habits. What decides which one is better met is the price elasticity of demand, that is, how much the quantity purchased reacts when the price rises.

  • Elastic demand: if the price rises, the quantity purchased falls by more than proportionally. People switch products easily.

  • Inelastic demand: the quantity falls only a little. It is hard to substitute for the product.

Two demand curves: one very steep, inelastic, and one nearly flat, elastic. price quantity inelastic elastic

That's why many analysts defend these "corrective" taxes: they put a price on the harm that society as a whole used to pay for, and, in addition, the money collected can finance health programs. Critics point out that, because they weigh more on the budget of those who earn less, they should be accompanied by other measures.

Practice★★★Not started
The Ministry of Finance is considering introducing an excise duty of $20\ \%$ on sugary drinks to correct the healthcare costs associated with diabetes and childhood…

The Ministry of Finance is considering introducing an excise duty of $20\ \%$ on sugary drinks to correct the healthcare costs associated with diabetes and childhood obesity (negative externalities).

  1. a) Relying on the concept of price elasticity of demand, predict what will happen to tax revenue and to changes in consumption habits if the demand for these soft drinks is highly elastic versus if it is highly inelastic. In which case is the revenue-raising objective better achieved, and in which is the public health objective better achieved?
  2. b) Argue why various analysts consider that this type of tax can be regressive, analyzing the expenditure structure of households with lower income levels.
  3. c) Design an alternative comprehensive public policy that uses the revenue generated by this tax to promote healthy habits, justifying what specific destination you would allocate the revenue to in order to offset the regressive impact on vulnerable families.
Solve

Effects of Taxes on Economic Activity

Laffer curve: revenue grows with the tax rate up to a maximum and then decreases. revenue tax rate

Back to the beginning: the $\$5$ Metro ticket doesn't cover its real cost; the difference comes out of the public budget, financed by ISR, VAT, and other revenue. If revenue isn't enough, there is a deficit and debt, and that's why every fiscal decision has effects on everyone.

Summary

See all the exercises in this section