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58 CHAPTER 5<br />

Table 5.3 Determ<strong>in</strong>ants of per capita <strong>in</strong>come (Lps/year)<br />

OLS regression a IV regression a Median regression<br />

St<strong>and</strong>ard St<strong>and</strong>ard St<strong>and</strong>ard<br />

Explanatory variable Coefficient error Coefficient error Coefficient error<br />

Livelihood strategy (cf. basic gra<strong>in</strong>s)<br />

Livestock producer b 1,623.5230* 962.5431 70.5572 2,486.5990 32.8428 454.0015<br />

Coffee producer b 834.9165 676.4722 1,167.2600 3,829.7530 808.3107* 438.6195<br />

Basic gra<strong>in</strong>s/farmworker b 1,889.3320*** 460.8879 1,330.5710 2,788.5730 788.7442*** 251.1165<br />

Basic gra<strong>in</strong>s/livestock/farmworker b 430.5966 443.9107 –968.0507 3,454.0970 318.5416 268.3193<br />

Natural capital<br />

Altitude –0.0220 0.1910 –0.0714 0.3302 –0.0123 0.0953<br />

Summer ra<strong>in</strong>fall (mm) -0.8352 0.8043 –1.6540 1.2079 –0.5768 0.4508<br />

Ra<strong>in</strong>fall deficit <strong>in</strong> secondary season 1.1220 4.8257 –2.9611 8.5114 –1.7959 3.3290<br />

Soil fertility 0.8673*** 0.2894 1.4020** 0.5553 0.2982** 0.1281<br />

Owned l<strong>and</strong> –1.3227 14.4535 4.8662 16.3507 12.2127 17.0358<br />

Physical capital<br />

Value of mach<strong>in</strong>ery/equipment (Lps) 0.0713*** 0.0211 0.0577** 0.0267 0.0517 0.0335<br />

Value of livestock (Lps) –0.0037 0.0059 0.0014 0.0066 –0.0041 0.0083<br />

Human capital<br />

Median years of school<strong>in</strong>g 88.4105 123.2930 176.7856 155.9783 93.6611 69.3199<br />

Household size –127.1230 116.4705 –119.2688 125.3083 –23.7948 49.0279<br />

Dependency ratio –870.6289** 378.4489 –1,124.4160** 544.3765 –84.1046 178.1112<br />

Female household head –567.4572 646.6149 –843.3355 1,358.9280 176.7366 505.6722<br />

Percentage of female adults –1,105.4710 1,527.2610 165.7526 2,046.6620 –698.0940 1,036.5910<br />

Age of household head 5.6683 15.1803 18.3637 25.2231 –0.5415 9.3418<br />

Migration <strong>in</strong>dex 1,210.7600 1,627.4030 825.1992 1,695.1420 1,099.4230 1,663.7680<br />

Geographic determ<strong>in</strong>ants of comparative advantage<br />

Market access 17.8614 48.3797 53.7810 67.5680 29.2209 21.4537<br />

Road density –111.4188 116.7664 49.0616 229.9084 52.4529 89.1523<br />

Population density 2.0546 2.4666 3.4383 4.2206 0.1314 1.8710

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