Fundamental Economics Problem

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Across
  1. 4. Time periods between 1 day to 4-6 months
  2. 6. A statement that can be proved
  3. 8. Desires that individuals seek to attain by personal preferences
  4. 9. When all factors of production are variable
Down
  1. 1. Time periods where both labour and capital are variable
  2. 2. The study of individual markets
  3. 3. A statement that cannot be proved
  4. 5. One of the inputs of factors of production
  5. 7. The study of whole economy or group of economics
  6. 10. The requirements that essential for an individual to survive