Thus the climate policy models in recent years started to model technological change using endogenous approaches.

近年来的气候政策模型则开始逐渐利用内生方法模拟技术变化。

youdao

Technological change in the early climate policy models is often seen as non-economic, exogenous variable, so the in-depth analysis of the cause and effect of technological change is very difficult.

但是早期的气候政策模型通常将技术变化视为非经济的外生变量，因而无法对技术变化的起因和效果做深入分析。

youdao

When security policy is enforced in the network, both models can work.

FORBES: The Best Thing to Offer a Technology Customer: Choice

D. economists may know a great deal about building economic models that help business executives and government policy makers pursue intelligent decisions.

FORBES: The First Rule of Intelligent Investing

To really understand the policy issues, we need to understand networks and business models.

FORBES: Crashing the Broadband Party