Consider two economies with having the same production functions during the 2000-2009 period. Discuss the possible impacts of the following developments during 2010-2020 on equilibrium levels of output and capital-output ratios in each of these two economies. Please provide all the necessary graphs to answer the questions.

(15 (+5 bonus) points) Research and Development (R&D) expenditures leading to higher technology in country A doubles whilst in country B remain the same.

(20 (+5 bonus) points) Saving rate in country A doubles whilst consumption rate in country B increases by 50 %.