ECON 1BB3 Lecture Notes - Sub-Saharan Africa, Maurice Ravel, Thymus

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14 Sep 2014

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ECON 1BB3 Full Course Notes

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How it effects humans in a geographic pattern. Colour coding in terms of percentage of individuals affected. Greatest number of people with aids in sub-saharan africa. An individual virus particle is called a virion and it has a genome made of 2 rna strands and there"s proteins on the surface -- there"s also three enzymes. Step 1: extracellular form called virion encounters the host. Step 2: uses proteins to latch onto cell -- on a co-receptor. It biochemically links to the surface receptor (cd4) Step 3: hiv injects it"s genome into the host cell and enzymes. Step 4: reverse transcriptase synthesizes hiv dna from. Step 5: integrase splices hiv dna into host genome. Hib mrna by the host cell"s rna polymerase. Step 8: protease cleaves precursors into mature viral proteins. Step 9: new generation of virions assembles inside host cell. Step 10: new virions bud from host cell"s membrane.

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6. (1 point) Tara lives in an economy where all adults either either work or go to university Those without a university education earn a salary of $40,000 per year. Those with a university education earn a salary of $65,000. University education lasts 3 years. Tuition is $30,000 per year, and Tara has access to interest-free student loans. Assume that Tara is an adult for 10 years. As an economist, give Tara advice on whether she should attend university before working. Bonus Question 1. (1 point) What, if anything, do you expect to happen to the num- ber of men who report having same-sex sexual orientation (or report being in a same-sex relationship or report having same-sex sexual desires) when HIV/AIDS becomes more preva- lent? What, if anything, do you expect to happen to the number of women who report having same-sex sexual orientation or report being in a same-sex relationship or report having same-sex sexual desires) when HIV/AIDS becomes more prevalent? Answer to these questions as an economist. Focus on explaining how and why changes in sexual behavior in response to HIV/AIDS becoming more prevalent might be different for men vs. women. Explanation should be 1-3 sentences. Bonus Question 2. (1 point) Following the murder-kidnapping of 12-year old Polly Klaas in 1993, California and a number of other states in the U.S. have passed so called three- strikes-laws. A three-strikes-law mandates that a person who commits a third criminal act to be jailed for the rest of his/her life without the possibility of parole. Importantly, these three-strikes-laws do not distinguish between more dangerous criminal acts such as murders and bank robberies and less dangerous crimes such as a smoking pot and shoplifting. Instead, anyone who is convicted of three criminal acts in total is to be jailed for the rest of his/her life following the third conviction. The intended effect of implementing such three-strikes-laws was to increase the penalties for crimes of any type in order to deter criminals from committing crimes. However, evidence suggests that the implementation of three-strikes-laws has increased the number of dangerous criminal acts (murders, bank robberies, etc) that have been committed. Why have the three-strikes-laws possibly led to an increase in the number of dangerous criminal acts? Explain (in 1-2 sentences).

This question is a bit hard. Assume a market with many individuals who trade goods. The number of goods available for trade grows as time evolves. In the first period, there is only one good to trade, in the second period, two goods, and so on (obviously in the Nth period there are N goods). Suppose that the market arrangement (and preferences of individuals) is such that the probability an individual engages in trading is inversely proportional to the number of goods: if there is only one good, the probability of trading is 1; if there are N goods, the probability of trading is 1/N. The payoff if an individual trades is 1 and if she does not, the payoff is zero. Suppose that individuals can create a monetary system every period for which they all have to pay a cost equal to 0 < x < 1. This system, however, raises the probability of trading for all individuals to 1 irrespective of the number of goods available in the market. After how many periods will individuals in this market decide to pay for this monetary system? Note that individuals decide whether to pay for the monetary system before they look for trades. (Hint: what is the expected payoff for a given individual if there is no money? How about if there is money? At which point are these equal?). This question is a bit hard. Its purpose is to make you think somewhat more deeply about the role of money as medium of exchange

P.S. I know the answer to this question (find it below), however I am looking for a response that shows/demonstrates how one comes to the conclusion. SOLVE THIS ANSWER YOURSELF, show that work, THEN explain how/why that is the answer. Please show your work.

ANSWER TO THE QUESTION I POSTED ABOVE: Individuals in this market will decide to pay for this monetary system at a point where expected payoff fr a given individual if there is no money and if there is money become equal. therefore when X = 1/n, the individuals will decide to introduce monetary system where X is the cost of creatingmonetary system and n is number of goods.

roseminnow685

The Unemployment rate is an easy number to find on the Internet. What is it currently and explain how that number could be understating the number of people who are "unemployed".

To address the question presented in this weekâs prompt, first define the unemployment rate with precision.

Then consider how each of the components of the unemployment rate can be affected by a recession on a large scale as we have encountered a decade ago.

This will lead you to understand that some individuals that should be counted as ânot workingâ are not counted in the unemployment rate, hence the possible underestimation of the unemployment rate.

Hint: the employment rate seems to be a better measure of the labor market when comparing that market before a recession to that market during that recession. Why?

ECON 1BB3 Lecture Notes - Sub-Saharan Africa, Maurice Ravel, Thymus

ECON 1BB3 Full Course Notes

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