Some new technologies result in proportionate savings of all inputs,while others save labor and use land or vice versa. For example, a new machine to cultivate the land may save labor and require a farmer to use more land to justify the cost. A higher-yielding rice variety may require more labor but produce more per unit of land. If a technology is neutral with respect to its effect on land and labor use, and if the demand for the product is elastic, the demand for both land and labor may grow proportionately following adoption of the technology. The reason is that, with elastic demand, total revenue increases with a shift out in the supply curve, providing increased returns to all resources. On the other hand, if product demand is inelastic, a neutral technical change can reduce the demand for all inputs proportionately.