Limites de l'investissement global et potentiel d'investissement

[eng] A country cannot be asked for limitless effort of investment. Its limits are short run limits which economic analysis has clearly defined and permanent limits. Among the latters there are economic and non-economic limits that is to sny physical and sociological limits the latters known owing to insufficient sociological knowledge. The author gathers economic limits around three ideas first idea production and consumption borders- lines second idea economic development and economic saturation third idea strategy of conquest and defence Nature of investment for example building investment and inventories investment can be if really necessary studied from strict economic point of view although building investments are directly bound with population physical limits and customs rociological limits). On the other hand the problem of under-developped countries shows that economic limits inherent in the nature of the system or in its relations with foreign countries international investment are undissociable from sociological limits Then notion of economic space appears in its whole complexity Notion of economic horizon too It is excessive to reduce the latter to mero technical horizon As Schumpeter pointed it out invention is born to economic existence only by its transformation into innovation This transformation is usually slow at first uncertain It draws back the limits of possible investment The difference between the latter and the already realized investment taking into consideration the disposable factors of production of the system the incompressible consumption etc. is the investing potential of the system worthy politic of investment uses the margin but does not pass beyond it and thus avoids the inflationnist tensions that such passing provokes