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won. Improved understanding of the-resitancen to adopt or to respond are

becoming critical One set of explanatory variables which deserves more

rigorous study is the-influence-e-f-ris-&-and-uncertainty juxtaposed against the

subsistence levels of living and subsistence production of such farmers. /
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 II. Sources of Resistance to Technological Change

 New technology is becoming the current vogue on which rest the hopes of

agricultural development to meet the challenge of the food/population race

[Stakman, et al., 1967; Noseman, 1967; Rockefeller, 1968]. Investment in

agricultural research on the physical and biological aspects of the plants and

animals which provide sustenance for the three fourths of the world engaged in

agriculture has become the new magic key. The massive concentration of research

talent and funds in crash programs to produce rapid payoffs with dramatic break-

throughs in agricultural technology have become the newest entrant in the parade

of solutions for underdeveloped agriculture.

 For the economist and the social scientist, however, new technology is

 neither an automatic panacea nor always an automatic source of dramatic growth

 [Johnson, 1968]. For the economist, true technological change is that which

 involves an increase in productive efficiency such that a larger output is ob-

 tained with the same input bundle of land, labor, capital. Since differences

 persist as to the appropriate definition of "innovation" among social scientists

 [Ruttan, 1959; Rogers, 1962], I shall use throughout the term "technological

 change." The term will be used in the same sense advocated by Ruttan [1959,

 p. 606] "to desigte hangs in the coefficients of a function relating inputs

 to outputs resulting from the practical application of innovations in technology

 and in economic organization." Thus "technological change" will embrace those

 changes in the previous relationship between outputs and inputs in a productive