1. INTRODUCTION 
Photogrammetric mapping usually represents the first phase of 
technical projects or of national development programs of a much broader 
Scope. In general, such projects or programs are intended to improve 
the economy of a local region, and consequently the national and even 
the world's economy. From this follows that the photogrammetric map- 
ping phase as part of a more global project or development program 
also affects these various economies. It is the purpose of this pa- 
per to elaborate to some extent on these questions. In particular we 
Shall be concerned with the macro-economic aspects of photogrammetric 
mapping, i.e. with studies concerning the effect of photogrammetric 
mapping on the national as well as the international economy. 
In dealing with this subject it is indispensable to evaluate 
first the national surveying and mapping potential of the country or 
of the countries in question. The knowledge of this potential will 
then allow us to evaluate or estimate the contribution of photogram- 
metric mapping to the national economy. 
2. THE IMPACT OF SURVEYING AND MAPPING IN GENERAL AND OF PHOTOGRAM- 
METRIC SURVEVING AND MAPPING IN PARTICULAR ON THE NATIONAL AND 
WORLD'S ECONOMY. 
  
  
One way to express the national surveying and mapping potential 
is in terms of annual expenditures and manpower involved. The deter- 
mination of this potential on a world-wide basis is a gigantic task. 
Nevertheless we have made an attempt and we arrived at the following