In the United States, which part of government investigates claims of subsidies or dumping?

In describing the progress of the typical person in an economy, measuring the median income always does a better job than measuring the mean income

Indicate whether the statement is true or false

Doug's Dog Grooming is a perfectly competitive firm charging $5 per dog grooming

Doug's Dog Grooming has the total and marginal product of labor schedules in the above table and can hire workers from a perfectly competitive labor market for $15 per hour. What is the value of marginal product of the third worker? A) $5 B) $25 C) $15 D) $375