挑战和对策所面临的挑战是，很多差异归结于政府政策上的差别。政策可在以下方面发挥关键作用：鼓励对创新进行投资，将这些投资引向对可持续发展至关重要的领域，并确保投资产生较高社会回报。
The challenge was that much of the variance comes down to differences in government policies. Policies have a key role to play in encouraging investments in innovation, in steering those investments into areas critical for sustainable development and in ensuring that investments generate a high social return.