Craig demonstrates thinking by not blindly accepting arguments and conclusions from others. instead, he analyzes the assumptions behind any claims, looks into possible hidden values, and tries to determine if conclusions are warranted.

critical    

Explanation:

Critical thinking: The term critical thinking refers to the process in which an individual is involved in making or creating reasoned judgments that are often considered as well-thought-out, rational, and logical.

An individual experiencing or understanding the concept of critical thinking is involved in a way of thinking patterns that require not to accept every arguments or conclusion made by a respective figure instead he or she questions it in one or either way.

In the question above, Craig demonstrates critical thinking.

citizens were able to charge more for their goods and services