1. Editorial Special Issue on the Formation of Groups

   Original papers Pages: 203 - 203

2. A strategic analysis of network reliability

   • Venkatesh Bala
   • Sanjeev Goyal

   Original papers Pages: 205 - 228

3. Network formation with sequential demands

   • Sergio Currarini
   • Massimo Morelli

   Original papers Pages: 229 - 249

4. The stability and efficiency of directed communication networks

   • Bhaskar Dutta
   • Matthew O. Jackson

   Original papers Pages: 251 - 272

5. Spatial social networks

   • Cathleen Johnson
   • Robert P. Gilles

   Original papers Pages: 273 - 299

6. Competition for goods in buyer-seller networks

   • Rachel E. Kranton
   • Deborah F. Minehart

   Original papers Pages: 301 - 331

7. Network formation models with costs for establishing links

   • Marco Slikker
   • Anne van den Nouweland

   Original papers Pages: 333 - 362