attached questions :

Suppose the population of cod sh near the Virginia Island follows a simple logistic function. 50- Using a neat, complete and well-marked graph, show the free access and socially efcient levels of the cod stock. Now suppose, there is a new technology that makes catching the cod easier. Show the impact on the free access and socially efcient equilibrium levels, by adding the changes to the same graph. S - Now suppose, the logistic function is like, 50000), Where biological growth, G, and stock of sh, S, are measured in kilogram/year, and kilogram, respectively. b) Suppose there is no external limitation in terms of food, affecting the sh. What would be the growth rate of the population of the sh per year. c) What would be the size of the population of the sh that this ecosystem can support. d) If shers catch 3500 kg per year, what would happen to the sh stock. G = 0.258(1 e)- Suppose they catch 2000 kg per year. What could be the possible stock of sh in equilibrium? (if you can't nd them, verify the equilibrium level of stock could be 10000kg or 40000kg.) What is the major difference between these two equilibrium levels? You need to explain it in detail and the reasons. 1)- Draw a graph show all above values, in parts (b) to (e). g) How can a Egulation (command and control) be used in order to increase the reuse ratio? Also comment if this policy can achieve socially Optimal level of recycling. How can a tradable permit system be used in order to increase the reuse ratio? Also comment if this policy can achieve socially optimal level of recycling