A) What are the main biases in the article on the minimum wage reported in the CIRANO text entitled "The presence of cognitive biases in economic analysis: a case study"? Can you discuss any of these biases? Why, as researchers in agricultural economics, should we pay attention to these cognitive biases, and how, in your opinion?

B) Can you discuss, through the unicorn analogy, what "Absence of evidence is not evidence of absence" means? What are the implications for you as researchers when interpreting your results? What exactly do we prove when we conduct an empirical study and observe that certain coefficients are significant (or not)?