by the salary and wage data submitted to the Gkoup by its Finnish contact for the three years of 1980 to 1982. If the same data had been used in both calculations, overall results would have come rather close to each other. 114. On this basis, the Group believes that it was able to achieve reliable results. It may also be worth noting that these results have been obtained by means of a simplified method, which has utilized a relatively limited amount of information. This matter is of special interest in the light of possible future negotiations on a reduction of military expenditures as a simple method and the use of easily verifiable data might greatly help to facilitate such negotiations. 115. The Group also believes that its military price indexes can be used to extrapolate military PPPs for the years of 1980 and 1981 on the basis of the parities which the Group has constructed for 1982. These parities and the method of extrapolation are presented in section C of this chapter. 116. The comparison between civilian and military price indexes shows that they, in many cases, are very different. It would therefore seem less satisfactory to rely on aggregate civilian price indexes such as the ones given in table 10 for the deflation of current military expenditures, in order to arrive at real expenditures for longer periods. The differences which appear in the table seem to provide a good case for the construction of special indexes for intertemporal comparisons of military expenditures. This would probably be even more important in the context of international negotiations on a Feduction of military expenditures as negotiating Parties would supposedly be concerned with the concept of real military expenditures for which they would want to have accurate information. It may be 
**Analysis**
The text appears to be discussing the construction of military price indexes and their potential use in international negotiations on the reduction of military expenditures. The language used is technical and focused on economic concepts such as price indexes, parities, and deflation. This suggests that the text is related to economic development, specifically in the context of military spending.

**Category**
Economic development, International trade