1. In is 001110 a legal output for a sequentially consistent memory? Explain your answer.

2. At the end of, we discussed a formal model that said every set of operations on a sequentially consistent memory can be modeled by a string, S, from which all the individual process sequences can be derived. For processes P1 and P2 in give all the possible values of S. Ignore processes P3 and P4 and do not include their memory references in S.

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1.In straight rebuy buying mode, business buyer makes the A. fewest decision B.most of the decision C.new decisions D.modified purchases 2. Expenditures that are tailored to particular value chain and organization are classified as A. vertical investments B.horizontal investments C.specific investments D.contractual investments 3. Business buyers seek benefits in economic, social and technical terms and in total classified as A. highest benefit package B.lowest benefit package C.medium benefit package D.initiating benefit package 4. Stronger buyer and seller ties are facilitated in A. vertical coordination B.horizontal coordination C.contract coordination D.selling coordination 5. Industrial strategy to build large scale industries by bidding process is classified as A. systems buying B.management supplies C.systems contracting D.system selling

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1.In the 1980s and 1990s many states passed Any-Willing-Provider (AWP) legislations that require managed care organizations to accept any provider into their network if the provider agreestotheconditions,termsandreimbursementrates. Supposeyouarehiredbyanagency to estimate the effect of AWP legislation on state-level hospital and physician expenditures (EXP). You have state-level data on expenditures, year AWP law passed, and demographic and health characteristics spanning 1980 through 1998. Note that both EXP and AWPvary across years and states. The state-level demographic and health characteristics include population density, percent of the population of African American race, HMO market share, real per capita income and unemployment rate. Assume that data are available for 50 states. A.[20 Points] What approach would you use to estimate the effect of the policy change (i.e.,AWP) on total hospital and physician expenditures? Specify your model (the equation and important assumptions), and then explain your estimation approach. B. [10 Points] Do we need to worry about potential endogeneity in AWP? Explain. Hint: You have panel data on 50 states (n= 50) and 9 years (t = 9). In part (A), set-up a linear panel data model with dependent variable EXP?? and key explanatory variable AWPit, other regressors (population,….unemployment rate), year dummies, individual effects and the idiosyncratic error term. Note AWPit = 1 if state i passed the law (or the law was in effect) during year t. Depending on the assumptions you make, you can in principle use fixed effects, random effects or first difference. You need to explain your chosen approach. The FE estimator might be preferable, though. For part (B), explain why the AWP legislation might be endogenous. Basically, if the AWP legislation is related to the underlying changes in health expenditures, then AWP may be endogenous. This is the so called policy endogeneity. If states implement the legislation in response to upward trends in health expenditures, then AWP may be correlated with the idiosyncratic error term.

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Name______________________________
Pledge (sign)_________________________
“I did not copy another student’s homework)
Econ 4020 – Dr. Rupp
Homework#5 – Taxes
Due – Feb 27 (at start of class)
1. In the above market for cheese – how much is the producer surplus at the initial equilibrium
(before a tax is introduced)?
2. Suppose that there is a $2.50 tax imposed on cheese per pound. Find the new equilibrium price
that buyers will pay for cheese. Label this Pb on your graph. Find the new equilibrium price that
sellers will receive. Label this Ps on your graph. Find the new equilibrium quantity.
Name______________________________
Pledge (sign)_________________________
“I did not copy another student’s homework)
3. Pin stripe the region of the new producer surplus on your graph after the $2.50 tax is imposed.
Calculate the new region of producer surplus. What has happened to producer surplus after the
tax has been imposed?
4. Calculate the total tax revenue collected from a $2.50 per pound tax. How much of this tax
revenue is paid by the buyers of cheese? How much is paid by the sellers of cheese?
5. Heavily shade the region of deadweight loss on your graph. Calculate this deadweight loss area.
6. Using the figure 2 below, where the vertical distance between points A and B represent the tax
in this market, what is the amount of the tax per unit?
Figure 2
7. Using the figure 2 above, find the per unit burden of the tax on sellers.
8. Using the figure 2 above, find the tax revenue collected. Horizontal stripe the tax revenue
collected from the buyers, and pin stripe the tax revenue collected from the sellers. Document Preview:

Name______________________________     Pledge (sign)_________________________             “I did not copy another student’s homework)   Econ 4020 – Dr. Rupp Homework#5 – Taxes Due – Feb 27 (at start of class)  1. In the above market for cheese – how much is the producer surplus at the initial equilibrium (before a tax is introduced)?     2. Suppose that there is a $2.50 tax imposed on cheese per pound. Find the new equilibrium price that buyers will pay for cheese. Label this Pb on your graph.  Find the new equilibrium price that sellers will receive. Label this Ps on your graph. Find the new equilibrium quantity.Name______________________________     Pledge (sign)_________________________             “I did not copy another student’s homework)  3. Pin stripe the region of the new producer surplus on your graph after the $2.50 tax is imposed. Calculate the new region of producer surplus. What has happened to producer surplus after the tax has been imposed?      4. Calculate the total tax revenue collected from a $2.50 per pound tax. How much of this tax revenue is paid by the buyers of cheese? How much is paid by the sellers of cheese?      5. Heavily shade the region of deadweight loss on your graph. Calculate this deadweight loss area.   6. Using the figure 2 below, where the vertical distance between points A and B represent the tax in this market, what is the amount of the tax per unit? Figure 2  7. Using the figure 2 above, find the per unit burden of the tax on sellers. 8. Using the figure 2 above, find the tax revenue collected. Horizontal stripe the tax revenue collected from the buyers, and pin stripe the tax revenue collected from the sellers.

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1. In the following series/ parallel circuit, the total resistance is 20 ohms, what is R? 12 2. In following circuit, R1 is 30 ohms, what is R2? 2 amps 5 amps ? R1 R2 3. If a circuit consumed 2 MWatts and operated for a period of 45 minutes at a cost of 6 cents/KWH, how much would the electricity cost? 4. If the voltmeter is reading 30 volts, what is the value of V (battery voltage)? 5 vE20 5. What battery voltage is required in order for the circuit to consume 2 watts? 10 70 20

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