On Demand Open Source Software

When is demand affected and when is quantity of demand affected?

Based on this question, I would like to know the answer to what I asked in the title. The comedian Chris Rock has suggested that one way to reduce gun deaths is by making bullets cost $5,000 apiece. Assuming guns and bullets are complements, what would be the effect of such a policy on the demand for guns? I think the answer would be the demand for guns would go down. Now, if the price of bullets or anything for that matter rises, the QUANTITY of demand goes down right? But this deals with complements, so it affects the demand curve. Please explain this difference.

Public Comments

1. Please stick to basics of mathematics.What are the units of measurement of demand? Demand can only be measured in units of quantity demanded. Therefore word demand is meaningless. Wherever the word demand appears please construe it as quantity demanded. Mathematically, demand is not a form f wealth where as quantity demanded is a form of wealth. Please redefine economics as chemistry of wealth.