Question

what are some things command and market got in common

Answer 1

If you mean a command (centrally planned) economy and a market economy, they still share several basic features and problems. Main things they have in common:

- They both address scarcity. Each system must decide how to allocate limited resources among competing uses.
- They both must answer the three basic economic questions: what to produce, how to produce it, and for whom.
- They both organize production and distribution. One does it by central directives, the other by private firm decisions and prices, but both coordinate resources to produce goods and services.
- They both use labor, capital, natural resources and technology as inputs to produce output.
- They both rely on incentives and enforcement. Whether via wages and profits or state orders and penalties, people respond to incentives; both systems need rules and instruments to enforce them.
- They both use money and some form of pricing or valuation to move goods and services (even planned economies often have internal prices, and market economies have taxes/subsidies).
- They both require institutions and administration — firms, ministries, courts, regulators, banks — to function.
- They both face trade-offs (efficiency vs. equity, short-term vs. long-term planning) and can suffer from inefficiencies (waste, shortages, surpluses, misallocation).
- They both evolve and can borrow features from each other; most real-world economies are mixed, combining planning and market mechanisms.

Short version: despite different mechanisms, both systems aim to coordinate scarce resources to produce and distribute goods and services and therefore share many fundamental functions and challenges.