Models and Forecasts '84 : VIIIth International Conference Modelling Socialist Economies ; Macromodels '84 : XIth Conference Problems of Building and Estimation of Large Econometric Models : Łódź, 8-12 October 1984 / [red. t.: Władysław Welfe, Krzysztof Markowski] ; Committee of Statistics and Econometrics Polish Academy of Sciences, Institute of Econometrics and Statistics University of Łódź, Museum of the History of Łódź.