estimation des effets propres des mesures agroenvironnementales ...
estimation des effets propres des mesures agroenvironnementales ...
estimation des effets propres des mesures agroenvironnementales ...
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Tableau 5.24 – Résultats <strong>des</strong> <strong>estimation</strong>s de l’effet de la MAE 20 sans la MAE 1995(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)STH 1295.84 ∗∗∗ 908.40 ∗∗∗ 1183.13 ∗∗∗ 893.81 ∗∗∗ 487.11 ∗∗∗ 1204.19 ∗∗∗ 428.45 ∗∗∗ 1144.77 ∗∗∗ 955.86 967.71 ∗∗∗(55.76) (60.51) (59.17) (66.66) (127.89) (96.11) (78.41) (63.54) (631.18) (366.71)STH (%) .05 ∗∗∗ .009 ∗∗ .05 ∗∗∗ .01 ∗∗∗ .10 ∗∗∗ .02 ∗∗∗ .09 ∗∗∗ .02 ∗∗∗ .05 .02(.004) (.004) (.004) (.003) (.005) (.003) (.004) (.002) (.07) (.03)SCOP -243.01 ∗∗∗ 9.29 -228.20 ∗∗∗ -6.83 -1455.14 ∗∗∗ -123.62 ∗∗∗ -1432.93 ∗∗∗ -116.75 ∗∗∗ -340.74 -90.68(43.98) (30.57) (42.85) (29.36) (93.27) (30.19) (74.21) (22.74) (669.79) (358.52)SCOP (%) -.05 ∗∗∗ -.02 ∗∗∗ -.05 ∗∗∗ -.02 ∗∗∗ -.08 ∗∗∗ -.02 ∗∗∗ -.08 ∗∗∗ -.02 ∗∗∗ -.04 -.02(.003) (.002) (.003) (.002) (.004) (.002) (.003) (.001) (.05) (.02)Pr.artif. 3.16 -19.18 4.57 -16.32 -44.92 ∗∗∗ 19.63 -41.04 ∗∗∗ 27.20 -11.50 19.30(10.82) (13.88) (9.78) (13.69) (13.68) (19.08) (12.26) (16.90) (97.75) (229.50)Pr.artif. (%) -.0005 .0008 -.0003 .0009 -.002 .0009 -.001 .002 .0001 .003(.002) (.002) (.001) (.002) (.002) (.002) (.001) (.002) (.009) (.02)Fourrage -92.57 ∗∗∗ -11.71 -89.43 ∗∗∗ -17.34 ∗∗ -179.20 ∗∗∗ -27.79 ∗∗ -175.95 ∗∗∗ -33.28 ∗∗∗ -83.33 -13.78(10.31) (8.00) (10.26) (8.03) (20.36) (12.49) (17.54) (9.70) (339.92) (152.89)Fourrage (%) -.02 ∗∗∗ -.003 ∗∗∗ -.02 ∗∗∗ -.004 ∗∗∗ -.007 ∗∗∗ -.007 ∗∗∗ -.007 ∗∗∗ -.007 ∗∗∗ -.01 -.005(.001) (.0009) (.001) (.0009) (.001) (.001) (.001) (.0008) (.02) (.01)Pr.temp. 201.33 ∗∗ 210.61 ∗∗ 190.37 ∗∗ 209.14 ∗∗ -73.18 237.89 ∗∗∗ -62.87 199.01 ∗∗∗ 34.52 126.96(82.55) (94.88) (82.70) (95.52) (53.19) (50.77) (39.37) (34.18) (1617.23) (1106.12)Pr.temp. (%) -.006 -.002 -.006 -.002 .02 ∗∗∗ -.005 .02 ∗∗∗ -.006 ∗ -.004 -.009(.005) (.004) (.005) (.005) (.004) (.004) (.004) (.003) (.09) (.08)SAU 1528.27 ∗∗∗ 1348.57 ∗∗∗ 1414.04 ∗∗∗ 1311.23 ∗∗∗ -1000.97 ∗∗∗ 1498.34 ∗∗∗ -1043.51 ∗∗∗ 1417.95 ∗∗∗ 1053.61 1279.10 ∗∗(77.02) (74.24) (81.82) (83.77) (172.35) (111.81) (117.67) (79.78) (1058.93) (514.45)Chargement -.26 ∗∗ -.04 ∗ -.26 ∗∗∗ -.05 ∗∗ -.27 ∗∗∗ -.12 ∗∗ -.27 ∗∗∗ -.12 ∗∗ -.32 -.16(.11) (.02) (.07) (.02) (.03) (.05) (.03) (.05) (.26) (.16)Note : Les estimateurs sont décrits dans le tableau 3.1. Les écart-types apparaissent entre parenthèses. Les symboles ∗∗∗ (resp.∗∗, ∗) indiquent une significativité auseuil de 1% (resp. 5%, 10%).Source : Calculs <strong>des</strong> auteurs.5.5 L’effet <strong>des</strong> <strong>mesures</strong> herbagères sur les prairies