Describe in 250 words Explain how today's business world is everchanging, especially as of late. Whether it’s the fight for racial equality or the reality of the pandemic, virtually everything we’ve ever known is changing at a rapid speed, for better or for worse. Please type

Use the following data to work Problems 1 to 4:

The following events have occurred in the history of the United States:

• A deep recession hits the world economy.
• The world oil price rises sharply.
• U.S. businesses expect future profits to fall.

Explain for each event whether it changes short-run aggregate supply, long-run aggregate supply, aggregate demand, or some combination of them.

1. Explain the basic assumptions of the Keynesian national income determination model.

2. The assumption that , imposed by the Keynesian model, has two main implications. Outline these assumptions.

Prove that

8. The November 2017 iPhone X and October 2018 iPhone XS have been regarded as Apple Computer’s first smartphone models with innovations that fail to impress compared to the innovations of its previous models. In a monopolistically competitive industry like smartphone handsets, show through a diagram and explanation, how the quantity produced by a firm in the long run compares to the quantity a perfect competitor would produce? Are the levels of product development and efforts to advertise product differences greater than the efficient level in monopolistically competitive industries?

Please write a 3 page paper. CDC style. Comparing the 2008 financial crisis and the great depression.

Please complete a 1 page summary on monetary policy

ECONOMIC DECISION MAKING

PLEASE TYPE OUT ALL THE RESPONSES

1. How much will accumulate in an account at the end of 10 years if $5,000 is deposited today and the account earns 4% interest, annually? What if compounded quarterly? What if compounded monthly?
2. If you were looking to replace your roof in three years, at an expected cost of $8,500, how much would you have to set aside in equal annual amounts, if you can earn 6% interest?
3. Suppose you deposit $65,000 in an account today that pays 5% interest, compounded annually. How much will you have in the account in 25 years?
4. You acquire a new truck for your business. The cost of the vehicle is $42,500. You are provided financing for five years at an interest rate of 6%. What are the monthly payments?
5. Complete the following solving for the Future Value:
   1. Present Value $35,000, Interest Rate 8% and N=9
   2. Present Value $539,400, Interest Rate 6.5% and N=36 Months
   3. Present Value $3,000, Interest Rate 5% and N=3

Please write a 5 paragraph essay describing the impact that the tariffs that the United States passed have impacted the U.S. and world economy. CDC style!

a) Define Marginal Product; what is the logical meaning of 'Diminishing Marginal Returns' to a single variable factor of production ? b) What is the behaviour of Marginal product (MP) of a factor of production when Average Product (AP) is decreasing with the level of production ?

Explain the so-called impossible trinity (also known as open economy trilemma). Using the diagram, discuss the policy alternatives of the monetary authority under different scenarios.

IV. a. Derive the IS curve graphically by using the appropriate graphs that are appropriately linked up, and by explaining clearly what you are doing and why.

      b. Use the graph for the IS-LM model (in i-Y space only) with the original eqm Y being full employment (that is, Y_FE) to show what will happen if President Trump enacts (another) tax cut. What is the name for this type of policy? What type of gap will exist, if any? What will happen to all the components of the goods and money markets?

Explain the impossible trinity. Discuss the policy alternatives of the monetary authority under different scenarios.