1. The production possibilities frontier (PPF) in the figure below shows the tradeoffs between
   consumption goods (goods that are used for final consumption) and capital goods (goods that
   are used in the production as inputs such as machinery and equipment). Suppose two countries:
   Spendthrift and Frugal, face this identical PPF.
   a) Suppose Spendthrift chooses to produce at point A while Frugal chooses to produce at point B.
   Which country will experience higher growth in the future? Why? (1 point)
   b) As you may have realized, growth will take place in both countries as a result of capital
   accumulation. On two separate graphs, show the impact of growth on production possibilities
   frontiers illustrating the difference between these two countries. Give a brief explanation Label
   the graphs clearly. (1 point)
2. In July 2017, the retail price of gasoline was $2.34 per gallon – exactly the same as it was in
   February 2005. Yet, total gasoline production and consumption rose from 9.6 million barrels per
   week in 2005 to 12.7 million barrels per week in 2017. Using the graph below, draw the
   appropriate shifts in the demand and supply curves to explain these two phenomena. Discuss
   the changes in demand and supply. (2 points)
   2
3. a) Suppose the current equilibrium price of cheese pizza is $10, and 10 million pizzas are sold
   per month. After the federal government imposes a $0.50 per pizza tax, the equilibrium price of
   pizzas rises to $10.40, and the equilibrium quantity falls to 9 million. Illustrate this situation with
   a demand and supply graph. Be sure your graph shows the equilibrium price before and after the
   tax, and the equilibrium quantity before and after the tax. How is the tax burden divided
   between buyers and sellers? Label the graph clearly. (3 points)
   b) Imagine that the community you live in decides to enact a rent control of $700 per month on
   every one-bedroom apartment. Using the following table, determine the market price and
   equilibrium quantity without rent control. How many one-bedroom apartments will be rented
   after the rent-control law is passed? Draw a demand supply diagram and show the effect of rentcontrol. What will happen if rent ceiling is set at $900? Label the graph clearly. (3 points)
   Monthly rent Quantity demanded Quantity supplied
   $600 700 240
   $700 550 320
   $800 400 400
   $900 250 480
   $1,000 100

Sample Solution

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Prior to beginning work on this discussion, read Chapter 13 of the course text, and watch the What is a Stem Cell? and Brain Injury and the Remarkable Rebuilding of the Brain videos. These resources cover brain injury and repair.

In your discussion,

Analyze the clinical, biological, and psychological factors that are important in successful recovery of brain functions after brain damage.
How can the brain repair itself or restore lost function after traumatic brain injury (TBI) or other causes of brain damage?
Be sure to focus on the concept and mechanisms in neuroplasticity. The text lists ways that the brain can repair itself, but reminds us later in the chapter that in adults in most areas of the brain neurons cannot replicate (undergo mitosis in the process of neurogenesis) to replace lost/dead neurons. There are some areas of the brain, such as the hippocampus (which is responsible for formation of new memories), which are capable of neurogenesis, but in adults other areas of the brain must utilize neuroplasticity to restore lost function.
In addition,

Discuss what clinical, biological, and psychological factors are important in successful brain function recovery outcomes.
What are some clinical interventions (e.g., medication, surgery, stem cell therapy, physical therapy, occupational therapy, rehabilitation techniques, and psychotherapy) that help facilitate the restoration of lost brain function?
Include information on brain structures, pathways, neurotransmitters/receptors, and psychological factors when discussing the topic areas above.
Additional emphasis should be placed on relating the underlying pathology of brain trauma and damage to the actual biological mechanisms of how various treatments support repair or restoration of function.
Also in your discussion, imagine you are in a career position that utilizes a degree in psychology. These may include, but are not limited to, careers such as a social worker, teacher or teachers aide, child care worker, psychiatric technician or other behavioral health staff, peer support specialist, social service specialist, probation or parole officer, case manager, human resources professional, rehabilitation of vocational counselor, or behavioral counselor.
How would your knowledge of the neurobiology of traumatic brain injury help you in your professional life?
How would this knowledge help you better assist your clients, students, or patients?
For instance, think of how this knowledge would help support reinforce the need for compliance with recommended treatments, or how to implement recommendations for modifications of the patients work or lifestyle to accommodate complications of brain injury.