Ruch Prawniczy, Ekonomiczny i Socjologiczny, 1998, nr 3-4

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SZACOWANIE WPŁYWU ZMIAN PRZEPISÓW PRAWA NA LICZBĘ PODMIOTÓW GOSPODARCZYCH. MODEL EKONOMETRYCZNY Z CIĄGŁYMI ZMIENNYMI IMPULSOWYMI
(Wydział Prawa i Administracji UAM, 1998) Guzik, Bogusław
The article indicates two approaches of modelling changes in number o f economic subjects as a result of changes in law: — issuing from zero-one variables, — issuing from constant impulsory variables. The second approach was described quite in detail, and more particularly - one o f its variants where a number of economic subjects generated in function of a given legal disposition increases accordingly to a power. Y — ^¡^CLzIx + Cta , X where: 1 _ ÍT01 for i>x 0 for t < I T = (i - X + 1); t - date of entering into force of a legal disposition. This model was illustrated with an example relating to fluctuation o f the number of accountancy offices in Bydgoszcz in relation with changed law on economic activities in the period from 1 quarter of 1990 to 4th quarter of 1997. The model obtained suits veiy well to empirical data - determination factor was up to 99,9 per cent.