Innovation play a vital role in agricultural production, especially because of the need to increase production to feed the market. However, the effectiveness of innovation is affected by government policies such as trade liberalisation and related policies (TL&P). These policies can affect innovation positively or negatively. The yam subsector of Ghana has been on the radar in terms of finding the effect of TL&P on innovation. Various innovations have evolved in the yam subsector ranging from the use of minisetts, to the use of skilled labour. However, the adoptions of these innovations are...