Childcare and Factory Jobs
The question
The competitive labor market for food-processing workers in the town of Elmridge is in equilibrium. The town opens free all-day childcare centers beside the industrial park, staffed entirely by teachers recruited from outside Elmridge, and thousands of local parents who previously had to stay home with young children can now take shift work at the plants. Assume the price of processed food and worker productivity are unchanged. Show the effect on the labor market for food-processing workers. Show the effect on the Labor Market graph.
Drag a curve, or use the arrow buttons. Want the free-play version with every control? Open this graph in the sandbox.
Childcare and Factory Jobs: the worked answer
On the Labor Market graph, Labor supply (SL) shifts right.
Why Labor supply (SL) shifts right
Free nearby childcare removes a barrier that kept parents out of the workforce, so more people are willing and able to work at every wage. The number of people offering their labor is a determinant of labor supply, so the labor supply curve shifts to the right. Because the price of processed food and workers' productivity are held constant, each worker's marginal revenue product is unchanged, so the labor demand curve does not move.
What happens to the equilibrium
The equilibrium market wage falls and the level of employment increases.
The mistake students make on this one
Students often shift labor demand right instead, reasoning that with more available workers the plants can produce more. Labor demand is the MRP schedule, which depends only on productivity and the output price; both are frozen here, and firms hiring more workers is a movement DOWN along the unchanged demand curve as the wage falls.
On exam day
Barriers to showing up for work (childcare, commuting costs, licensing rules, visa limits) are always labor SUPPLY determinants, no matter which side of the market the news story is written about.
How this is graded
The checker reads every curve's position before and after your answer. You are marked correct only when Labor supply (SL) shifts right and every other curve on the Labor Market graph stays where it started — the same standard an AP reader applies to a drawn graph: the right shift, and nothing extra. There is no AI involved; the rubric is the geometry.
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