suffer an income loss in poor years, but cannot be regarded as suffering from transitory food insecurity. Overall, families who have access to purchased inputs, and hence canplant tobacc hybrid maize have dune well out o liberalisation. These families tend to have above average farm size. Households which are maize deficit, and have no resources to invest in improved maize varieties have lost out. These households tend to have below average size. One type of household which is not represented in the models above is the fgy fpoofamily who has virtually no interaction with the market. There are indications that the very poorest rural households in Malawi, it is difficult to estimate their precise number, exist in a world of own production and barter. Theyperform ganyu largely for maize and they barter any spare vegetables or pulses for food. Market liberalisation has almost certain had very little impact on them. Households 1 and 2 are only negatively affected insofaras ey sell groundnuts. If they bartered, their position might not have changed. The results form this very simple model are in line with the findings from an recent LP) model which looks at the same issue, though the LP model allows changes in cropping patterns in response to price changes (Alwang and Siegel 1996) If these findings are representative, then this raises important issues about how poor rural households can be given some ability to participate in markets on better terms than they are doing at present. Unless they can develop the ability to buy inputs, raise cash crops and otherwise improve their productivity, then they are fated to a life of increased marginalisation if they continue to depend on agriculture for their major income source. For some of these households, the only viable option will be a movement to increased involvement in off-farm income generating activities. C 17