[link]

• David's concept
• aka The Invisible World

The idea of The Invisible World is for the user to infer the supply and demand curve based on the original (price, quantity) point and several other points: these points may or may not correspond to the same demand and supply curve depending on a few exogenous variables. The player must tell which variable affects supply, and which affect demand.

In our implementation the concept was simplified:

• no need to draw lines between points (allow user to click them)
• no need to directly specify exogenous variables

Progress:

• show price points and table at the side
• on mouse hover, instead of changing colors, scale line
• ask sometimes for the supply curve, not just the demand curve
• maximum number of tries, and keep a global score
• more exogenous variables, and also more commodities/services (suggestions?)
• we probably want to get rid of the "new price point" button, and already start with enough points: the score is then given by the previously mentioned global score, rather than subtracted from original points as in the original