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Algo av&des : courbe de référence
Na_r
Nd_r
Na_q Nd_q
Proportion avantagée : 50 % Proportion désavantagée : 10 %
Algo av&des : rapprochement
Rapprochement de la courbe de référence à la
courbe rouge d’une proportion X/10 (ici X=1,43)
Algo av&des : ajustement
Rapprochement de la courbe de référence à la
courbe rouge d’une proportion X/10 (ici X=1,43)
Rapprochement de la courbe verte à la courbe rouge
pour assurer la neutralité budgétaire
(i.e. l’égalité entre ce les aires sous les deux courbes)
Algo av&des : segment à gauche
Modification du côté gauche pour le rendre
affine : on trace un segment entre rdb et Na,
ce qui a pour effet d’augmenter légèrement les
plus bas revenus et de baisser légèrement les
revenus de la classe moyenne basse
rdb (ici, 800€/mois)
Na
Cette réforme (la « réforme médiane ») a été approuvée par 54 % des français et rejetée par 24%
Algo av&des : résultat final
Voici le résultat final de l’algorithme appliqué à des
paramètres légèrement différents :
avantager = 50 % (Na_q)
desavantager = 12 % (Nd_q)
X = 1 (conservation de l’ancienne distribution entre 0 et 10)
aid = 0 (baisse du revenu national)
Algo av&des : résultat final avec aid
Voici le résultat final de l’algorithme appliqué à des
paramètres légèrement différents :
avantager = 50 % (Na_q)
desavantager = 12 % (Nd_q)
X = 1 (conservation de l’ancienne distribution entre 0 et 10)
aid = 5 (baisse du revenu national de 5 %)
Cette réforme (la «réforme médiane aid») a été approuvée par 47% des français et rejetée par 31%
Algo av&des : résultat final avec aid
Voici le résultat final de l’algorithme appliqué à des
paramètres légèrement différents :
avantager = 50 % (Na_q)
desavantager = 12 % (Nd_q)
X = 1 (conservation de l’ancienne distribution entre 0 et 10)
aid = 5 (baisse du revenu national de 5 %)
Cette réforme (la «réforme médiane aid») a été approuvée par 47% des français et rejetée par 31%

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Algorithme av&des

  • 1. Algo av&des : courbe de référence Na_r Nd_r Na_q Nd_q Proportion avantagée : 50 % Proportion désavantagée : 10 %
  • 2. Algo av&des : rapprochement Rapprochement de la courbe de référence à la courbe rouge d’une proportion X/10 (ici X=1,43)
  • 3. Algo av&des : ajustement Rapprochement de la courbe de référence à la courbe rouge d’une proportion X/10 (ici X=1,43) Rapprochement de la courbe verte à la courbe rouge pour assurer la neutralité budgétaire (i.e. l’égalité entre ce les aires sous les deux courbes)
  • 4. Algo av&des : segment à gauche Modification du côté gauche pour le rendre affine : on trace un segment entre rdb et Na, ce qui a pour effet d’augmenter légèrement les plus bas revenus et de baisser légèrement les revenus de la classe moyenne basse rdb (ici, 800€/mois) Na Cette réforme (la « réforme médiane ») a été approuvée par 54 % des français et rejetée par 24%
  • 5. Algo av&des : résultat final Voici le résultat final de l’algorithme appliqué à des paramètres légèrement différents : avantager = 50 % (Na_q) desavantager = 12 % (Nd_q) X = 1 (conservation de l’ancienne distribution entre 0 et 10) aid = 0 (baisse du revenu national)
  • 6. Algo av&des : résultat final avec aid Voici le résultat final de l’algorithme appliqué à des paramètres légèrement différents : avantager = 50 % (Na_q) desavantager = 12 % (Nd_q) X = 1 (conservation de l’ancienne distribution entre 0 et 10) aid = 5 (baisse du revenu national de 5 %) Cette réforme (la «réforme médiane aid») a été approuvée par 47% des français et rejetée par 31%
  • 7. Algo av&des : résultat final avec aid Voici le résultat final de l’algorithme appliqué à des paramètres légèrement différents : avantager = 50 % (Na_q) desavantager = 12 % (Nd_q) X = 1 (conservation de l’ancienne distribution entre 0 et 10) aid = 5 (baisse du revenu national de 5 %) Cette réforme (la «réforme médiane aid») a été approuvée par 47% des français et rejetée par 31%