What is a buying plan and why is it important?

In macroeconomics, to study the aggregate means to study blank

Acountry made education free in mandatory up to age 15. it is established 100 new schools to educate kids across the country. as a result, citizens acquired the _ required to work. the school's generated _ for teachers and other staff. in 20 years, to countryside rapid _ and its gdp.

Modern firms increasingly rely on other firms to supply goods and services instead of doing these tasks themselves. this increased level of is leading to increased emphasis on management.