Annex 1 Assuming competitive market structures and liberal price formation, the rightwards shift of the production/supply curve leads to a reduction in the market price from p to p' and to an increase in the volume of production and supply from vs to vs., and a corresponding reduction of the supply and demand deficits. If the price were fixed at p, food production/supply would increase even further but demand remain the same, hence market surpluses would appear. Fig. A-5: Impact of technology improvements on food production and supply nce requirements demand production /supply shift production old /supply Snew p ----_---------------- -- ------ -- p .:--................ I--------------------------- voum Vs s' > volume Major factors inducing technological improvements are research and extension. Although the impact on food production may be quite significant, it is typically of a long-run nature, as the effects need a longer time to materialise than, for example, a response to changing input prices. Technological changes in both directions towards more or less efficient production may also occur in connection with changing production systems, if there is for example a shift from smallholder food production to large scale farming (or vice versa). It depends on the country specifics of resource availability and forms of resource use whether such a shift implies technological improvement or not. There is some evidence that small-holder production can be more efficient than large scale farming. Impact of food imports Food imports increase food supplies over and above the level of domestic market production. Fig. A-6 which is based on the open economy model demonstrates the effects on domestic production and supplies, assuming that the imported food commodities are sold to the consumers on the open market. The picture would look different, if imported food commodities, stemming, say, from food aid supplies, bypassed the market and were directly distributed to needy people. The impacts of food imports on the structure of food deficits have already been discussed under Section 2 in relation to the open economy model (Figure A-2). The increase of market supplies and the lower price resulting from food imports induces a decline of domestic food - 273 -