Brainstorming: How to capture Laissez-faire concept

I got a photo assignment – to capture Laissez-faire concept for future website LaissezFaire.info. Laissez-faire (/ˌlɛseɪˈfɛr-/, French: [lɛsefɛʁ] literally translates to “let (it/them) do” or “let it be”, a commonly used term to describe economy free from government interference such as regulations, privileges, tariffs, and subsidies. Here I’m thinking loudly. What images can represent free market economy? A few images of flea markets to start with.

Flea Market, Madrid
Flea Market, Madrid

Flea Market, Madrid

Flea Market, Brussels
Flea Market, Brussels

Flea Market, Antwerp
Flea market, Antwerp

Flea market, Hanover
Flea Market, Hanover

I failed to connect flea markets with Laissez-faire concept, yet I found the photo of a man reading old letters at the Madrids flea market which seems pretty interesting by itself.
Flea Market, Madrid