Which of the following statements is true?
A) Correlation can only arise when causation is not present.
B) Causation can only arise when correlation is not present.
C) Causation arises when there is correlation between two variables, and can also arise even when there is no correlation.
D) Correlation arises when there is causation and can also arise even when there is no causation.
D
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According to UN projections, what proportion of the world's urban population will reside in the urban areas of developing countries by 2025?
(a) two fifths. (b) one half. (c) two thirds. (d) four fifths.
Article 102 of the Treaty on the Functioning of the European Union (TFEU) prohibits a dominant firm from doing all of the following except which one?
A) placing trading partners at a competitive disadvantage by practicing price discrimination B) charging an unfair price C) limiting or controlling production in markets through market division D) buying at a price that is unfairly low
Bill's disposable income goes from $100,000 in 2010 to $200,000 in 2011, and his consumption spending goes from $80,000 in 2010 to $140,000 in 2011 . Which of the following statements about Bill is true? a. Bill's MPC rose between 2010 and 2011. b. Bill's MPC is equal to 0.7
c. Bill's MPC is equal to 0.6. d. Both (a) and (b) are true.
Economic profit
A. can be calculated by subtracting implicit costs of using owner-supplied resources from the firm's total revenue. B. is negative when total costs exceed total revenues. C. is a theoretical measure of a firm's performance and has little value in real world decision making. D. is generally larger than accounting profit.