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Tables 1-7


Table 1: Decadal RCR Estimates by Developing Country Region

Region

1960s

1970s

1980s

1990s

1996-2000
(CGI)
Contribution

Latin America & Caribbean

.111

.198

.175

.284

.192 (.066)

Asia (incl. China)

.078

.075

.229

.204

.147 (.089)

Middle East North Africa

.179

.138

.214

.214

.186 (.069)

Sub-Saharan Africa

.154

-.067

.274

.217

.144 (.028)

Table 2: Modern Variety Diffusion 1970, 1980, 1990, 1998.

Percent area planted to modern varieties


Latin America

Asia (including China

Middle East - North Africa

Sub-Saharan Africa


1970

1980

1990

1998

1970

1980

1990

1998

1970

1980

1990

1998

1970

1980

1990

1998

Wheat

11

46

82

90

19

49

74

86

5

18

38

66

5

22

32

52

Rice

2

22

52

65

10

35

55

65





0

2

15

40

Maize

10

20

30

46

10

25

45

70





1

4

15

17

Sorghum





4

20

54

70





0

8

15

26

Millets





5

30

50

78





0

0

5

14

Barley









2

7

17

49





Lentils









0

0

5

23





Beans

1

2

15

20









0

0

2

15

Groundnut





0

15

20

50





0

0

20

40

Cassava

0

1

2

7

0

0

2

12





0

0

2

18

Potatoes

25

54

69

84

30

50

70

90





0

25

50

78

All crops

8

23

39

52

13

43

63

82

4

13

29

58

1

4

13

27

Table 3: Synthesis: Estimates of MV/TV and MV/MV Impacts on Yield Crop Studies and Country Studies

MV/TV Estimates (Full Replacement)

MB/MV (Turnover) Estimates (Full Turnover)

Crop

Country

Tonnes/ha

Percent
increase

Source

Country

Tonnes/ha

Percent
increase

Source

Consensus

Wheat

India

.98

46

Evenson, '98

China

.74

24

Chapt. 18

45%


India

.98

45

Chapt. 19

Latin America

.2

10

Chapt. 4


Rice

India

.50

33

Gollin &
Evenson, '99

China

1.6

29

Chapt. 12

47%


India

.98

65

Evenson, '98

Brazil

.5

20

Chapt. 20



India

.67

43

Chapt. 19







Sub-Saharan
Africa
(upland)


24

Chapt. 6






Maize

India

.98

65

Chapt. 19

Brazil

.41

20

Chapt. 20

50%


Sub-Saharan
Africa

.60

45

Chapt. 8

Latin America


5-15

Chapt. 7


Sorghum

India

1.38

80

Chapt. 9





45%


India


37-40

Chapt. 9







Sub-Saharan
Africa


7-63

Chapt. 9






Pearl Millet

India

.48

45

Chapt. 19

India


40-45

Chapt. 10

45%


India


45

Chapt. 10







Sub-Saharan
Africa


38

Chapter 10






Barley

Middle
East- North
Africa


25

Chapt. 11





41%

Lentils

Middle
East- North
Africa


41

Chapt. 13





41%

Beans

Latin
America

.21

35

Chapt. 12





25%


Sub-Saharan
Africa

.4

55

Chapt. 12






Cassava

Sub-Saharan
Africa

3.74

49

Chapt. 16





48%


Latin
America

3.29

29

Chapt. 16






Potatoes

Global

2.5

35

Chapt. 15





35%

Table 4: TFP Growth Estimates, Rice, Wheat and Maize. Dependent Variable TFP Growth by Decade


Rice

Wheat

Maize

Pooled


(1)

(2)

(1)

(2)

(1)

(2)

(1)

(2)

1965-76

.147**

.083**

.582**

.431**

.282**

.254**

.231**

.253**

1975-86

.159

.094

.384**

.236**

.186**

.150**

.148**

.160**

1986-95

.059

.015**

.096**

.048**

.308

.279**

.096**

.122**

Wheat








.143**

Rice








-.131**

East-SE Asia


.089**


.309**


.143**


.134**

South Asia


.043


.193**


-.217**


.045*

Middle East
North Africa


.104


-.046


-.128


-.113*

Sub-Saharan
Africa


.102


.192


.018


.170**

# Obser.

162

162

96

96

192

192

450

450

R2

.084

.119

.304

.436

.034

.157

.034

.288

Table 5: TFP-MVA Relationships. Dependent Variable: Cumulated TFP Growth

Independent
variables

Rice

Wheat

Maize

Pooled
(1)

Pooled
(2)








Cumulated MV

.720

.470

.644

.534

Sq (CMVA)

.253 (.73)

Adoption

(3.82)

(1.18)

(3.24)

(2.83)

SQRT (CMVA)

.156 (.82)

(CMVA)





HA x CMVA

4.88 (1.00)


.059

.302



.179

d 1976-85

(.66)

(1.23)

NR

(1.31)

(1.45)


-.048

.355

2.476

.201

.188

d 1985-95

(.42)

(1.17)

(5.43)

(1.57)

(1.32)


-.079

.467

-.019

1.203

.231

Constant

(.89)

(2.43)

(.15)

(.73)

(.95)





.421

-.302

D Wheat




(2.93)

(2.04)





-.218

-.306

D rice




(1.13)

(2.05)

# Obser

51

60

38

149

149

R2

.339

.152

.497

.390

.337

Table 6: CGI Contributions to Yield Growth by Crop


Contribution Shares


Adoption
(1998)

Varieties
(1965-2000)

Crop

1960s

1970s

1980s

1990s

1960-98

IX

IA

IX

IA

Wheat

.514

.981

1.125

.975

.960

.32

.32

.49

.37

Rice

.342

.940

.959

.747

.794

.29

.29

.20

.32

Maize

.311

.481

.733

.906

.665

.23

.32

.28

.19

Sorghum

.055

.391

.716

.676

.504

.22

.16

.16

.11

Millets

.228

.428

.537

.854

.565

.27

.38

.15

.50

Barley

.073

.199

.424

1.01

.490

.50

.30

.49

.20

Lentils

0.0

0.0

.193

.750

.283

.70

.20

.54

.65

Beans

.022

.027

.367

.331

.208

.80

.20

.72

.05

Cassava

0.0

.006

.087

.636

.222

.74

.19

.53

.16

Potatoes

.708

.711

.749

.846

.739

.08

.09

.17

.08

All Crops

.321

.676

.832

.823

.718

.35

.30

.36

.22

IX: Varietal cross made in IARC program
IA: Varietal Cross in NARS program with IARC ancestor

Table 7: CGI Contributions to Yield Growth by Regions


Contribution Shares







Adoption
(1998)

Varieties
(1965-2000)

Region

1960s

1970s

1980s

1990s

1960-98

IX

IA

IX

IA

Latin America

.312

.600

.781

.751

.658

.28

.30

.39

.18

Asia (including China)

.452

.932

1.030

.890

.884

.30

.37

.18

.39

Middle East- North Africa

.141

.270

.681

1.228

.688

.51

.31

.62

.28

Sub-Saharan Africa

.017

.142

.358

.497

.280

.44

.27

.45

.28

All Regions

.321

.676

.832

.823

.718

.35

.34

.36

.19

IX: Varietal cross made in IARC program
IA: Varietal cross in NARS program with IARC assistance


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