Day 1 2 3 4 Advances 870 760 960 840 Declines 880 990 790 910 Volume advancing(m) 580 620 480 510 Volume declining(m) 670 580 720 520 Yield on top-rated corporate bonds 6.8 % 6.7 % 6.7 % 6.6 % Yield on intermediate-grade corporate bonds 7.4 % 7.4 % 7.5 % 7.6 % From day 1 to day 4, the confidence index has . This is .

Suppose farmer lane grows and sells cotton in a perfectly competitive industry. the market price of cotton is $1.64 per kilogram, and his marginal cost of production is $1.44 per kilogram, which increases with output. assume farmer lane is currently earning a profit. can farmer lane do anything to increase his profit in the short run? farmer lane: a. cannot do anything to increase his profit. b. may or may not be able to increase his profit. c. can increase his profit by raising his price. d. can increase his profit by producing more output. e. can increase his profit by shutting down.