aeffetlevier.py

Created by matthieumorvant

Created on June 22, 2025

1.46 KB


EFFET LEVIER 
EFFET DE LEVIER
FORMULE
effet levier =
ROE - RE
DEFINITIONS
ROE = rentab FP
= RN / FP
RE = rentab éco
= REX / actif total
EFFET DE LEVIER =
effet de lendettement
sur la rentab FP
ANALYSE
levier + = ROE > RE
dettes profitables
effet multiplicateur
sur ROE
levier - = ROE < RE
dettes pénalisent
rentab FP
levier 0 = pas deffet

EFFET DE LEVIER
L effet de levier mesure
comment l endettement
ameliore ou degrade
la rentabilite des FP rf
par rapport a re
FORMULE
rf = re + (re - rD *
(1 - t)) * D / FP
DEFINITION DES TERMES
rf = rentabilite FP
re = rentab economique
rD = cout de la dette
t = taux impot (33.3%)
D = dette nette
FP = fonds propres
OU TROUVER CHIFFRES
cout financier brut
3094 ou 3080 au CR

Dette nette =
dettes LT + CT
-tresorerie active

EXEMPLE N-1
D = (18853 + 40915)
-4214 = 55554 kE
EXEMPLE N
D = (14535 + 50162)
-2684 = 62013 kE
FONDS PROPRES
N-1 FP = 46644 kE
N FP = 51539 kE

CALCUL rD
N-1 rD = 3094 / 55554
= 5.57 %
N rD = 3080 / 62013
= 4.97 %
CALCUL D/FP
N-1 D/FP = 55554 / 46644
= 1.19
N D/FP = 62013 / 51539
= 1.20
CALCUL COMPLET N-1
rf = 3.577 + [3.577
-(5.57 * (1-1/3))]
*1.19
= 3.41 %

CALCUL COMPLET N
rf = 6.696 + [6.696
-(4.97 * 0.667)] * 1.20
= 10.75 % approx 10.77 %

CONCLUSION
si rD * (1-t) < re
effet levier positif
rf augmente
si rD * (1-t) > re
effet levier negatif
rf baisse
RESUME VISUEL
ETAPE 1
rD = cout dette / D nette
ETAPE 2
D / FP
ETAPE 3
rf = re + [re - (rD *
(1 - t)) ] * D / FP
ETAPE 4
effet levier = rf - re

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