Models of Spatial Interaction

• First Law of Geography
• Distance Decay and Friction of Distance
• Complementarity
• Transferability
• Intervening opportunity

Gravity Model

Iij = Pi*Pj / dij squared

Assignment for Next Time

Read pp. 114-142 Come to class with a basic understanding of the following concepts: Resources, Reserves, nonrenewable resources, renewable resources, flow resources, stock resources, maximum sustainable yield, conservation,