innovation has been elaborated and applied to the agricultural valley of Cháparra in the South of Peru. The results allow for an … ; Cháparra ; Peru ; network analysis …

collected from 500 potato farmers in a poor region of Northern China, where eliminating poverty by 2020 is now the top … government priority. The findings indicate that potato plays an important role in the surveyed families' incomes, and the energy … costs of potato production have a significant negative relationship with family income. However, the significance of the …