Economic Implications 163 



This study has in many respects opened up new avenues of 

 research. We are far from understanding all of the aspects of tech- 

 nological discovery and diffusion and the economic effects 

 emanating from it. A beginning must be made somewhere. This 

 volume has provided some consistent data, but much further 

 progress in terms of the collection of accurate and detailed data 

 can be made. We hope that the models presented, particularly 

 those incorporating geoclimate factors as impediments to diffu- 

 sion, have opened new areas for further study. More careful work 

 with geographic and economic data in diffusion models should 

 prove rewarding. 



