PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 7. 
13] DURBIN J.: Maximum-likelihood estimation of the parameters of a 
system of simultaneous regression equations. Joint European Confe- 
rence of the Institute of Mathematical Statistics and the Econometric 
Society, 1963, Mimeographed. 
f14] EcksTEIN Otto: Benefit-cost analysis and regional development. In 
« Regional Economic Planning ». O.E.E.C., Paris, 1961. 
[15] Foster C. D. and Bersiey M. E.: Estimating the social benefit of 
constructing an underground railway in London. « Journal of the 
Royal Statistical Society, Series A (General) », vol. 126, pt. 1, 1963, 
PP. 46-93. 
Haavermo Trygve: The statistical implications of a system of simul- 
taneous equations. « Econometrica », vol. XI, no. 1, 1943, pp. I-I2. 
HrrcH C. J.: On the choice of objectives in systems studies. In « Sy- 
stems: Research and Design ». Wiley, New York, 1961. 
Hurwicz Leonid: On the structural form of interdependent systems. 
In « Logic, Methodology and Philosophy of Science ». Stanford Uni- 
versity Press, 1962. 
Krein L. R., and RUsIN H.: À constant-utility index of the cost 
of living. « The Review of Economic Studies », vol. XV, no. 38, 1947- 
1948, pp. 84-7. 
Kornar J.: Mathematical programming of long-term plans in Hun- 
gary. I.E.A. Conference on Activity Analysis, 1963. Mimeographed. 
Kornai J., and LIPTAK: Two-level planning. Computing Centre of the 
Hungarian Academy of Sciences, Budapest, 1963. Mimeographed. 
/22] LERNER Abba P.: The Economics of Control. Macmillan, New York, 
1944. 
23] MaLinvaup E.: Decentralised procedures for planning. 1.E.A. Con- 
ference on Activity Analysis, 1963. Mimeographed. 
24] MatHUR P. N.: Output and investment for exponential growth in 
consumption - an alternative formulation. and derivation of their tech- 
nological upper limits. « The Review of Economic Studies », vol. XXXI, 
no. 85, 1964, pp. 73-6. 
[25] MEabE J. E.: Consumers’ Credits and Unemployment. Oxford Uni- 
versity Press, London, 1938. 
M26] Morgan E. Victor: The Structure of Property Ownership in Great 
Britain. Clarendon Press, Oxford, 1960. 
f27] MUKERyI V.: Output and investment for cxpomential growth in con- 
sumption - the general solution and some comments. « The Review 
of Economic Studies », vol. XXXI, no. 85, 1964, pp. 77-82. 
28] PurrriPps A. W.: Stabilization policy in a closed economy. « The Eco- 
nomic Journal », vol. LXIV, no. 254, 1954, pp. 290-323. 
[29] PuiLLips A. W.: Stabilization policy and time-forms of lagged respon- 
ses. « The Economic Journal », vol. LXVII, no. 266, 1957, pp. 265-77. 
[30] PurrLrrs A. W.: La cybernétique et le contrôle des systèmes écono- 
miques. « Cahiers de l’Institut de Science Economique Appliquée », 
. Do. 72, 1958, pp. 41-8. 
31] PircuForp J. D.: Growth and the elasticity of factor substitution. 
« The Economic Record », vol. XXXVI, no. 76, 1060, pp. 401-504. 
"11 
Stone - pag. 84