The aggregate demand and the aggregate supply model allows us to examine how a variety of events can affect the economy.
In your own words, discuss which of the four sources identified with aggregate demand has caused a change in the aggregate demand for a product or service you or your employer use. Share the effect that source has had on how you or your employer contribute to the measurement of aggregate demand.
Category: economics
The aggregate supply curve in the neoclassical model
Briefly discuss the aggregate supply curve in the neoclassical model, including how the curve is drawn, what it determines, and how it operates over time.
The neoclassical perspective on macroeconomics
Explain what the neoclassical perspective on macroeconomics emphasizes Does acceptance of this approach imply that the Keynesian approach is wrong?
Productivity growth
Why does productivity growth in high-income economies not slow down as it runs into diminishing returns from additional investments in physical capital and human capital? Does this show one area where the theory of diminishing returns fails to apply? Why or why not?
Separation and Qualitative Analysis of Cations
In this experiment, you will use analyze the characteristic reactions that a variety of cations undergo. You will then devise a qualitative analysis scheme to analyze a solution that contains a variety of these cations in one solution. You will then use this analysis to determine the identity of an unknown cation solution.
Introduction
When a chemist conducts a qualitative analysis, the primary goal is to identify the substances that are present in a mixture. It is important to separate substances from each other in a mixture, so that a confirming test can be as definitive as possible. After a thorough qualitative analysis investigation, it would be nice to say, for example, that potassium is present instead of saying merely that an alkali metal is present.
Conducting a qualitative analysis, or “qual scheme” as it is sometimes nicknamed, is a methodical process that requires great care. A qual scheme can be used to identify a wide variety of substances; in this experiment, you will focus on ions. In this unit you have been learning about solubility equilibria and complex-ion equilibria, both of which play crucial roles in the separations and identifications that are part of a qual scheme. You will see some very interesting things during this experiment, things that will help you understand more about the nature of cations and anions.
Reaction with HCl
A common step in qualitative analysis schemes is to react with chlorides. Usually only a few cations, Pb2+, Hg22+, and Ag+, will react to form precipitates with chloride ions. It is useful to use reagants that only react with a few cations to more easily narrow down the identity of some cations.
In this lab you will be testing Pb2+ and Ag+. The way you can determine the difference between the two ions is by adding NH3 to the precipitate. AgCl will dissolve in a basic solution but PbCl2 will not.
Reaction with NH3
Ammonia is a unique reagent because it will show a variety of products. Sometimes a precipitate occurs with a characteristic color, but in other cases a complex ion is formed with a very vibrant color change. Therefore it is useful to record all changes that you observe.
Does money really make the world go ’round?
Discuss the following statements: Without money, everything would become more expensive. In Discussion: Does money really make the world go ’round?
In countries such as Zimbabwe, which had problems with high inflation, the increased use of another country’s currency (such as the U.S. dollar or South African rand) became common. Why do you suppose this occurred?
The difference between qualitative and quantitative research methods?
What is the difference between qualitative and quantitative research methods? Give an example of each.
The U.S. economy
The U.S. economy started shedding manufacturing jobs and gained services sector jobs in the 1990s, a trend that has largely continued. Why has this been so prevalent and how has it impacted wages and employment levels? Finally, how do employment levels (unemployment rates) impact wage levels?
The sources of revenue that can make up the difference from the budget cut.
Identify the sources of revenue that can make up the difference from the budget cut.
Assess how the department should be funded based on the budget cut.
Evaluate any potential ethical concerns that are associated with the different source(s) of revenue.
Compare and contrast the varying approaches used to fund interscholastic sports, intercollegiate sports, and professional sports.
Independent, dependent, and control variables
Design (1-2 pages): Describe how your study will be designed and organized. If you are conducting an experiment, discuss your independent, dependent, and control variables. Also, highlight whether or study will utilize a qualitative, quantitative, or mixed methods approach, and provide a rationale that explains why the approach was chosen.