Salary Differences and the Minimum Wage
A surgeon earns much more than a supermarket cashier, and two people who do the same job can receive different pay. Why? On this page you will see which factors explain those differences, how the minimum wage works, what a pay stub says, and why the price the market pays does not always reflect what a job is worth to society. At the end you will see what happens to your pay and your savings when prices go up.
The Factors That Explain Pay Differences
Pay is the price of labor. Like any price, it depends on how scarce what is being offered is and how hard it is to produce.
Real examples: a medical specialist (years of training), an airline pilot (responsibility for hundreds of passengers), an oil rig worker in the Gulf of Mexico (risk and harsh conditions), and an industrial robotics engineer in Querétaro (few people with that profile).
Explain three reasons why some jobs are better paid than others — qualifications and training, level of responsibility, hardship or danger, scarcity of qualified people…
Explain three reasons why some jobs are better paid than others — qualifications and training, level of responsibility, hardship or danger, scarcity of qualified people — and give a real occupation as an example of each.
Education and Pay
In general, the more education, the higher the average pay. The reasons are the same: more training, jobs with more responsibility, and fewer people qualified for certain jobs. If one group earns a certain percent more than another, you calculate it by multiplying: 50% more is the same as multiplying by $1.5$.
The figure shows the average monthly salary in the imaginary country of Laboria according to education level: no qualifications, $\$22\,000…
The figure shows the average monthly salary in the imaginary country of Laboria according to education level: no qualifications, $\$22\,000$; vocational training or high school (preparatoria), $\$28\,000$. The figure for university graduates is covered, but it is known that they earn on average $50\ \%$ more than the previous group.
- a) Calculate the average salary of university graduates, which is the missing figure.
- b) Explain two reasons why salary usually increases with level of education (more training, greater responsibility, fewer people qualified for certain roles).
In the same town, an industrial electrician with a robotics certificate earns $\$46\,000$ per month, while a shop assistant earns $\$26\,000$. a) Using the factors…
In the same town, an industrial electrician with a robotics certificate earns $\$46\,000$ per month, while a shop assistant earns $\$26\,000$.
- a) Using the factors covered in the unit, explain why the market pays the electrician more (lengthy training and few people holding that certificate).
- b) Reason what would happen to that salary if there were suddenly many electricians with the same certificate while demand remained the same.
The General Minimum Wage
Notice: the minimum is a floor. If the pay the market would offer is already higher, nothing changes; if the market would pay less, the law requires paying more. To compare pay from different periods, convert them to a common basis, for example to a year: monthly pay $\times$ number of payments per year.
The statutory minimum wage is the legal floor: no full-time worker can be paid less. In Mexico, it is around $\$23\,680$ gross per month spread over $14…
The statutory minimum wage is the legal floor: no full-time worker can be paid less. In Mexico, it is around $\$23\,680$ gross per month spread over $14$ payments.
- a) Calculate the annual minimum wage.
- b) A store offers a full-time job for $\$21\,000$ per month across $12$ payments: calculate the annual total and explain whether the job offer is legal.
Should the Minimum Wage Be Raised?
It is a real debate. In favor: it dignifies the lowest-paid jobs, increases consumption, and reduces inequality. Against: some small businesses might hire less or raise prices. To form a well-founded opinion, it helps to ask for data: how many people earn the minimum and how much a typical business's costs would rise.
The government plans to raise the Minimum Interprofessional Wage (SMI) by $10\ \%$. Faced with this announcement, two opposing stances emerge: a hospitality business…
The government plans to raise the Minimum Interprofessional Wage (SMI) by $10\ \%$. Faced with this announcement, two opposing stances emerge: a hospitality business association claims that the measure will cause massive layoffs and drive up prices in the sector, while a trade union argues that the increase will boost aggregate demand and generate net employment because low-income families will spend that money immediately.
- a) Using the functioning of the labor market and the concept of marginal propensity to consume, analyze the economic mechanisms that support each of the two stances and explain under what real economic conditions each effect would carry more weight.
- b) Design a monitoring protocol for the Ministry of Labor with two specific economic indicators that make it possible to assess, after six months, whether the increase has had a contractionary or expansionary impact on employment and the price level in the services sector.
The Pay Stub and the Cost to the Employer
In addition, the employer pays employer contributions to the IMSS, which do not appear as a deduction from the worker but are part of the total labor cost of hiring them.
On the payslip of his first job, Alex sees: gross salary $\$26\,000$, Social Security contributions $\$1\,700$, income tax (IRPF) withholding $\$1\,800…
On the payslip of his first job, Alex sees: gross salary $\$26\,000$, Social Security contributions $\$1\,700$, income tax (IRPF) withholding $\$1\,800$.
- a) Calculate the net salary he will receive in his bank account.
- b) Explain in one sentence what contributions are: what are they paid in exchange for (unemployment, pensions, healthcare)?
Comparing Job Offers
Two full-time job offers: (A) gross salary of $\$32\,000$ with $\$3\,000$ in deductions; (B) gross salary of $\$29\,000$ with $\$1\,400$ in deductions and free canteen…
Two full-time job offers: (A) gross salary of $\$32\,000$ with $\$3\,000$ in deductions; (B) gross salary of $\$29\,000$ with $\$1\,400$ in deductions and free canteen meals valued at $\$2\,000$ per month.
- a) Calculate the monthly net salary for each offer and add the value of the canteen meals to Offer B.
- b) Which would you choose? Justify your choice using the numbers and at least one non-monetary factor (working hours, commute distance, work environment).
Market Price, Social Value, and the Pay Gap
A Liga MX soccer player or a famous streamer can earn in one month more than a nurse earns in years: there are few people with that talent and millions pay to watch them. That explains their price, but it does not say they are worth more to society. And unpaid domestic and care work is real work even though it appears on no pay stub.
The Pay Gap
The pay gap is the difference between the average pay of men and women. Paying a woman less for the same position and category is illegal, but the gap can exist anyway because of structural causes: more women in lower-paid sectors (horizontal segregation), fewer women in management positions (vertical segregation), more part-time contracts, fewer supplements, and careers interrupted by caring for children or relatives.
A labor audit at a large services company reveals that the average wage of female staff is $14.5\ \%$ lower than that of male staff. However, the Human Resources…
A labor audit at a large services company reveals that the average wage of female staff is $14.5\ \%$ lower than that of male staff. However, the Human Resources department demonstrates with payroll records that for every single position, exactly the same base salary is paid to men and women in the same category.
- a) Resolve the apparent contradiction: explain what structural economic and labor factors (horizontal and vertical segregation, salary bonuses, contract type, and family burdens) explain the existence of this average wage gap without there being a direct violation of equal pay laws for the same position.
- b) The company plans to allocate its equality budget to offer a voluntary assertiveness and salary negotiation course exclusively for female employees. Critique the effectiveness of this measure and design two organizational labor policies that address the true causes of the gap identified in the previous section.
Your Pay and Your Savings Over Time
A salary of $\$10{,}000$ is not worth the same this year as next year, because prices change. And money kept in a piggy bank does not hold its value either. Three ideas explain this.
To know whether you are really gaining, compare two percentages: if your money grows less than prices, you buy less than before; if it grows more, you buy more.
In a shopping mall, two sales assistants work in the same department and with the same duties: Marcos has a full-time contract ($160$ hours per month) and earns a gross…
In a shopping mall, two sales assistants work in the same department and with the same duties:
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Marcos has a full-time contract ($160$ hours per month) and earns a gross monthly salary of $\$1,280$.
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Laura has an involuntary part-time contract ($80$ hours per month) and earns a gross monthly salary of $\$720$.
- a) Calculate the gross wage per standard hour for each of them and determine whether there is wage discrimination based on the unit price of labor.
- b) Marcos argues to his colleagues: "I earn almost twice as much as Laura, so the company values my work much more." Refute Marcos's argument using the concepts of hourly pay and working hours, and explain what medium- and long-term economic harm Laura suffers by being on an unwanted part-time schedule (consider saving capacity, Social Security contributions, and future unemployment or retirement benefits).
Back to the beginning: the surgeon earns more because of her training, her responsibility, and the scarcity of specialists; and two people in the same job can be paid differently because of supplements, seniority, bonuses, or schedule. Also, what matters is not only how many pesos you receive, but how much you can buy with them.