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This model represents a simple extension of the Hotelling spatial competition model by considering two dimensions.
A "num-of-people" of consumers feel like having an ice-cream that is sold by any of the two firms (firm 1 and firm 2). At each moment, each consumer at a given position goes to the "closest" firm, buys an ice-cream, and returns to its original place.
Firms do nothing for the moment
"Setup" will create a "num-of-people" consumers randomly spread around the world and two firms: firm 1 (blue) and firm 2 (green
"Go" makes firms move around the world to gain consumers as described above
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