Vincent de Leijster

132 Chapter 6 Table 6-4. Factors (potentially) influencing economic performance. ‘Log’ indicate log transformed indicators and factors. ‘Poly’ is a 2 nd degree polynomial regression. Bold text are significant effects. † refers to boxplots in appendix Figure A6-6. Coffee gross revenue (log) Coffee net revenue (log) Realized net revenue Coefficients ± SD R 2 F P Coefficients ± SD R 2 F P Coefficients ± SD R 2 F P Canopy Spatial arrangement 0.062 3.7 0.02 0.0036 1.1 0.33 0.002 0.90 0.44 Tree density 0.998±1.001 0.01 2.7 0.10 1.004±1.002 0.02 3.5 0.06 0.10±1.35 -7.7*10 -3 0.01 0.94 Timber tree density 0.999±1.001 4.9*10 -3 1.5 0.22 1.002±1.002 6.3*10 -5 0.99 0.32 -1.20±1.71 -4.1*10 -3 0.49 0.48 Fruit tree density log 1.010±1.087 -0.015 0.014 0.91 1.330±1.189 0.031 2.7 0.11 4.06±1.37 0.096 8.7 0.004 Legume tree dens. log 1.125±1.114 0.0039 1.18 0.28 0.959±1.202 -0.028 0.05 0.82 3.378±1.500 0.08 5.1 0.03 Musa density log 0.948±1.056 3.5*10 -4 0.95 0.33 0.989±1.096 9.8*10 -3 0.01 0.91 1.25±0.88 8.0*10 -3 2.1 0.15 Tree species richness 0.995±1.025 -6.9*10 -3 0.04 0.84 0.960±1.044 -8.6*10 -4 0.91 0.34 27.2±40.8 -3.9*10 -3 0.45 0.51 Canopy cover 0.992±1.008 1.9*10 -3 1.0 0.32 1.002±1.014 -0.05 0.03 0.86 2.34±15.5 -0.038 0.02 0.88 Management intensity Pest control 3.200±1.590 0.036 6.3 0.01 4.040±2.354 0.015 2.7 0.11 731±780 8.8*10 -4 0.88 0.35 Herb control 2.250±1.604 0.014 2.9 0.09 0.457±2.239 5.1*10 -4 0.94 0.33 -339±789 -5.8*10 -3 0.18 0.67 Fertilization 2.782±1.694 0.019 3.8 0.05 1.119±2.407 -8.9*10 -3 0.016 0.90 -193±882 -6.8*10 -3 0.048 0.83 Location Altitude 1.001±1.000 0.061 9.2 0.003 1.0004±1.000 0.03 5.5 0.03 0.882±0.607 0.0088 2.1 0.15 Farm characteristics Farm size log 1.203±1.065 0.052 8.7 0.004 1.067±1.038 0.014 3.0 0.08 -27.7±122 -7.6*10 -3 0.05 0.82 Last pruning (poly) 1: 1.699±1.293* 2: 0.880±1.078. 0.0069 2.3 0.10 1: 1.806±1.529 2: 0.933±1.127 0.051 3.1 0.05 1: 84.9±425 2: 60.8±126 0.013 1.7 0.19 Supply chain Intermediary † 3.9*10 -2 3.8 0.03 † 1.6*10 -2 1.9 0.15 † 5.8*10 -2 4.49 0.01 Certified † -4.5*10 -3 0.36 0.55 † -9.0*10 -3 4.6*10 -3 0.95 † -7.1*10 -3 0.012 0.91