| Coordinating Lead Authors |  |  | 8.2.4.6 Rates of return to agricultural    R&D investments in sub- | 
    
      | Nienke Beintema (The Netherlands), Ahmet Ali Koc (Turkey) |  |  | Saharan Africa    517 | 
    
      |  |  | 8.2.5 | Environmental impacts of AKST investments    517 | 
    
      | Lead Authors |  |  | 8.2.5.1     Agriculture 518 | 
    
      | Ponniah Anandajayasekeram (Australia), Aida Isinika (Tanzania), |  |  | 8.2.5.2 Livestock 518 | 
    
      | Frances Kimmins (UK), Workneh Negatu (Ethiopia),    Diane Osgood |  |  | 8.2.5.3     Forestry 520 | 
    
      | (Switzerland/USA), Carl Pray (USA), Marta Rivera-Ferre (Spain), V. |  |  | 8.2.5.4 Aquaculture 520 | 
    
      | Santhakumar (India),    Hermann Waibel (Germany) |  |  | 8.2.5.5     Traditional and local knowledge 520 | 
    
      |  |  | 8.2.6 | Health impacts of agricultural R&D    investments 520 | 
    
      | Contributing Authors |  | 8.2.7 | Spillover effects 522 | 
    
      | Jock Anderson (Australia),    Steven Dehmer (USA),    Veronica Gottret |  | 8.2.8 | Impacts of public sector agricultural    R&D investments on | 
    
      | (Bolivia),    Paul Heisey (USA), Philip    Pardey (Australia) |  |  | poverty 524 | 
    
      |  |  | 8.3 | Governance of AKST Investments: Towards a    Conceptual | 
    
      | Review Editors |  |  | Framework 527 | 
    
      | Harriet Friedman (USA) and Osamu Ito    (Japan) |  | 8.3.1 | Demand for improved governance 527 | 
    
      |  |  | 8.3.2 | Defining and judging governance in    relation to the AKST | 
    
      |  |  |  | investments 527 | 
    
      |  |  | 8.3.3 | Analyzing the experience of governing    AKST investments 529 | 
    
      | Key Messages |  |  | 8.3.3.1     Public funding/public sector research 529 | 
    
      | 8.1 | Spending and Funding Trends in AKST 497 |  |  | 8.3.3.2 International donors 531 | 
    
      | 8.1.1 | Trends in agricultural R&D spending    497 |  |  | 8.3.3.3     Competitive funding 531 | 
    
      |  | 8.1.1.1     Public sector spending 497 |  |  | 8.3.3.4     Commodity boards and growers'associations 532 | 
    
      |  | 8.1.1.2 Private sector spending 500 |  |  | 8.3.3.5     Private research 532 | 
    
      |  | 8.1.1.3 Intensity of research 502 |  | 8.3.4 | AKST governance and changes in the larger    institutional | 
    
      |  | 8.1.1.4 International agricultural    R&D 504 |  |  | environment 533 | 
    
      | 8.1.2 | Determinants of public and private    R&D investments 505 |  | 8.3.5 | The future roles of governance and    institutional structure 534 | 
    
      |  | 8.1.2.1     Determinants of public research 505 |  | 8.4 | Investment Options 535 | 
    
      |  | 8.1.2.2 Determinants of private research    506 |  | 8.4.1 | Criteria and methods for guiding AKST    investments 535 | 
    
      | 8.1.3 | Investments in other AKST components 507 |  | 8.4.2 | Investment options 536 | 
    
      | 8.1.4 | Funding agricultural R&D in the    developing world 507 |  |  | 8.4.2.1      Options for societies aiming to give major support to | 
    
      | 8.2 | Impacts of AKST Investments 509 |  |  | environmental sustainability 538 | 
    
      | 8.2.1 | Conceptual framework 509 |  |  | 8.4.2.2     Options for societies aiming to give major support to | 
    
      | 8.2.2 | Economic impact assessment 509 |  |  | improving nutrition and human health 540 | 
    
      | 8.2.3 | Methodological limitations of impact    measurements 510 |  |  | 8.4.2.3     Options for societies aiming to give major support to the | 
    
      | 8.2.4 | Empirical evidence 511 |  |  | hunger and poverty reduction 540 | 
    
      |  | 8.2.4.1     Rate of returns to national AKST investments 511 |  |  | 8.4.2.4     Options for societies aiming to give major support to | 
    
      |  | 8.2.4.2 Rates of return to crop genetic    improvement |  |  | economically sustainable development 541 | 
    
      |  | investments 511 |  |  | 8.4.2.5     A portfolio of AKST investments to meet multiple | 
    
      |  | 8.2.4.3 Economic impacts of research and    extension |  |  | goals 541 | 
    
      |  | investments 511 |  | 8.4.3 | Future AKST investment levels and    priorities 542 | 
    
      |  | 8.2.4.4 Agricultural research and    education investments and |  |  | 8.4.3.1     Levels of AKST investments 542 | 
    
      |  | agricultural growth 514 |  |  | 8.4.3.2 Allocation of AKST resources 542 | 
    
      |  | 8.2.4.5 Rates of return to CGIAR    investments 516 |  |  |  |