Explain as completely as you can what an economist means by demand (supply). What is meant by a change in demand and cha

[answerhappygod]

Explain as completely as you can what an economist means by
demand (supply). What is meant by a change in demand and change in
quantity demanded (or supplied)? EXPLAIN THE CONCEPT IN YOUR OWN
WORDS. Do not quote the book and don't refer to your article yet.
Identify ALL the factors that can shift a demand (or supply) curve
(those in the text and in the presentations). Explain briefly how
each factor impacts the respective curve you have chosen (could be
several paragraphs) Explain what happens to Pe and Qe when demand
(supply) increases and when demand (supply) falls. Make sure all
the points I have highlighted about have been discussed on page 1.
However, it should all be presented in a logical progression. I am
looking to see how well you can articulate the economic principle
you have chosen to discuss.