Table 1. All CPPM Parameters and Data Sources 

VARIABLES variable name Description SCALE Weight Total res.* SOURCE
PHYSICAL              
P1 Arable land in country 2002 Total arable land, relative rank among African countries. 0-4 2 8 Nat. FAOSTAT 2004.
P2 Historic cotton area 1992 Savannah ecosystem 0-1 20 20 1km Loveland et al 2000.
P3 Irrigated share of cropland 2002 Irrigated land/total cropland, relative rank in Africa. 0-4. 2 8 Nat. FAOSTAT 2004.
P4 Irrigation potential 7km buffer on rivers. 0-1. 16 16 1km. FAO GeoNetwork:          

Rivers were buffered.
P5 Tractors 2003 Number of hectares of arable/ permanent cropland per tractor, relative rank in Africa. 0-4. 1 4 Nat. WRI 2006, FAOSTAT 2004.
P6 Ginnery capacity 2004 Number of cotton ginneries. 0-4. 3 12 Nat. Hussein 2005: SWAC 2004.
P7 Distance to ginnery Distance to ginneries. 0-8 1 8 Unk. Hussein 2005, SWAC 2004, straight-line distance ArcGIS .
P8 Road condition 2002 Access to optimal, suitable, marginal, unsuitable, and areas of unknown roads: lower transportation costs, access to technology 0-4. 5 20 16km International Road Federation 2002.
P9 Fertilizer use intensity 1997-2002 Average fertilizer per hectare, relative rank in Africa. 0-4. 3 12 Nat. FAOSTAT 2004.
P10 Landlocked 2002 Road quality, distance, freight cost, and borders crossed. 0-30 0.5 15 Nat. Adapted from Faye 2004.
P11 Energy price 2002 Pump price for diesel. 0-4 3 12 Nat. The World Bank 2004.
P12 Cattle Distribution 2002 Cattle stocking density per hecatare, access to animal power and manure. 0-4. 4 16 5km FAO GeoNetwork http://www.fao.org/geonetwork/srv/en/main.home
P13 Terrestrial Ecoregions Limit of ecoregions, Sudano-Guinean and Niger Delta given priority. 0-1 16 16 Reg. Olson et al 2002.
P14 Precipitation 1961-1990 Rainfall average. 0-4 5 20 50km FAO and IIASA
P15 Problem soils 1997 Problem soils for agriculture. 0-4 4 16 9km FAO GeoNetwork
SUBTOTAL 15 Variables         203     
 
 
 
 
 		              
 
VARIABLES		  
variable name		  
Description		  
SCALE		  
Weight		  
Total		  
res.*		  
SOURCE
ECONOMIC              
E1 External Cotton Price Reflecting lower international subsidies, more lint demand, and negative or positive change in world price. 0-4 5 20 Nat. Watkins 2002; Gillson 2004; Baffes 2005; Minot & Daniels 2005; Anderson & Valenzuela 2006.
E2 Domestic demand 2005 Domestic lint use/total production. Rank in relation to  world countries. 0-4 5 20 Nat. USDA/FAS
E3 Risk of public default 2004 Weight of public debt to GDP and exports, ration of debt service, ratio of debt service to exports, structure and sustainability of debt structure for two years, situation of agreements in the Club de Paris and accounting for debt reduction strategy (PPTE). 0-7 2 14 Nat. Credit Risk International 2005.
E4 Equilibrium budgets and payments 2004 Balance of current transactions of GDP, need to consolidate state expenses for the GDP, deficit of domestic savings over GDP, monthly foreign-exchange reserves on imports. 0-7 1 7 Nat. Credit Risk International 2005.
E5 Risk of inconvertibility and devaluation 2004 Level of convertibility and/or membership of a constraining monetary area, frequency and intensity of the last devaluations, rate of real effective exchange (TCER) since 1992 and 1995, evolution comparing the TCER and the BFE on GDP. 0-7 1 7 Nat. Credit Risk International 2005.
E6 Banking system health 2004 Level of suspect loans of the banking structure, level of the control of the local banking Commission, existence of insurance for holder sin the market. 0-7 2 14 Nat. Credit Risk International 2005.
E7 Producer price 1994-2002 Average price institutional setting and efficiency. 0-2 6 12 Nat. Goreux 2002, Bourdet 2004.
E8 Producer price trend 1994-2002 Trend shows the ability of institutions to lower costs and pursue effective reforms. 0-2 8 16 Nat. Goreux 2002.
E9 Producer price variance Shows resilience of institutions to ecological and institutional shock, maintain consistent producer prices 0-2 8 16 Nat. Goreux 2002
E10 Foreign direct investment 1994-2002 Trend shows growth in foreign investment. 0-4. 2 8 Nat. Development Data Group, The World Bank. World Development Indicators Online 2004. 
SUBTOTAL  10 Variables        134     
               
 
VARIABLES		  
variable name		  
Description		  
SCALE		  
Weight		  
Total		  
res.		  
SOURCE
SOCIAL              
S1 Population density (rural areas and city centers) 2001 Census data for rural population modified by excluding Urban Population Areas. Coefficients for all regions are based on: Roads, weighted by distance from major roads; elevation, weighted by favorability of slope categories; land cover, weighted by type with exclusions for certain types; and Nighttime lights of the World, weighted by frequency. 0-4. 1 4 1km Oak Ridge National Laboratories (ORNL) 2002.
S2 Distance to city 1992 Distance to urban markets. 0-4 3 12 1km FAO GeoNetwork: ESRI for Phase II of the UNEP/FAO Desertification Assessment and Mapping Project. Updated and more cities added from the 1:3000000 ArcWorld data set.
S3 Agricultural  researcher per thousand agricultural  workers 2001 Serves as  a proxy for R & D expenditures and human capital development, ranked relative available global countries. 0-4 5 20 Nat. Researchers: ASTI 2006. AgWorkForce: FAOSTAT 2004.
S4 Human Development Index 2002 0-4. 5 20 Nat. United Nations Development Programme.  United Nations.  Human Development Report 2004. 
S5 Rule of Law Index 2002 Shows general trust in institutional framework. 0-1 12 12 Nat. Kaufmann, Kraay, and Mastruzzi 2005.
S6 Political Stability and Absence of Violence Index 2002 Units: Index: -2.5 worst governance, 0 average, 2.5 best governance. 0-4 10 40 Nat. Kaufmann, Kraay, and Mastruzzi 2005.
S7 Corruption Index 2005 The CPI is a composite index compiled from 16 surveys originating from 10 different independent institutions. 0-10 2 20 Nat. Transparency International. 2005. http://www.transparency.org/content/download/1521/7934/file/methodology.pdf
S8 Agricultural labor intensity 1993-2001 Average of agriculture workers per hectare ranked against other African nations. 0-4. 5 20 Nat. FAOSTAT 2004.
SUBTOTAL  8 Variables        148     
    Total Possible Points = = = = 485

*Resolution: Is usually represented in km. However, when disaggregated data was not available, regional (Reg.) or national (Nat.) scale data was employed.