Graph 9-6
This graph refers to the market for oil in Spain. 
-According to Graph 9-6, producer surplus plus consumer surplus in Spain after trade would be:
Definitions:
Feedback
Information or opinions about one's actions or performance, given by others, used for improvement or development.
Weekly Reviews
Regular evaluations or summaries of work, progress, or performance conducted on a weekly basis.
Review Schedule
A planned timetable for revisiting and evaluating work or study content, aiming to ensure comprehension and retention of material.
Key Information
Crucial or essential data or facts that are vital to understanding a topic or solving a problem.
Q13: The marginal tax rate is the appropriate
Q38: Private contracts between parties with mutual interests:<br>A)
Q62: A tax levied on the supplier of
Q78: Part of the deadweight loss from taxing
Q87: Which of the following factors are most
Q130: If only a few people are affected
Q131: As with many public goods, determining the
Q141: In the end, tax incidence:<br>A) is determined
Q160: Refer to Table 7-1. Which of the
Q199: Irrespective of whether an externality is positive