This study is an investigation into the relative non-acceptance by farmers of new technology in the form of the Te Awa type of hill country development. It embodies an investigation into the physical and economic aspects of development, and of the factors which are currently limiting or preventing development. Technological change can be defined as change which results in an objective or end being achieved in a physically different way. Of particular interest are those changes which increase profits, although whether a change is in fact profitable, may require a fairly detailed investigation. There are three major sources of new technology in agriculture; firstly, from research aimed at developing and proving new techniques, (e.g. the breeding of improved pasture species); secondly, as an unplanned by-product of pure research (e.g. the n-type Romney sheep); and thirdly, from planned or chance discovery by farmers, (e.g. the Hunter fence).