Capital and labor costs, as well as the เปัน technology in production, so different, so revenue from the difference in labor costs.And technology in production.
Epa capital and labor as well as the technology of production. Therefore, the difference in earnings came from the difference of labor. Capital and technology to produce
Capital and labor as it early, as well as technology in production. So the difference in income is due to the difference of labor. Capital and technology into production.