Please work this out. Do not understand 4. Macroeconomics is a field of economics which concerns performance, structure, behavior, anddecisions of an economy at aggregate levels. There are three key issues in macroeconomics, e.g.output growth, price level and employment. Finish the questions of macroeconomic concepts andissues as following.(1) Consumer Price Index (CPI) is a price indicator to reflect price levels over time. As a keyeconomic indicator, CPI is computed monthly by the Bureau of Labor Statistics (BLS) using a"market basket" purchased by the typical consumer each month. Suppose you are doing a studyto yearly price levels (CPI) of a metropolitan area in the US. Its CPI includes three categories,Food (grocery), Energy (gasoline) and other items (all goods and services less food and energy).The table below provides you the prices of the three categories in 2019, 2020 and 2021. Also,you have the units purchased by a typical consumer in these three categories. Use 2019 as thebase year, to show step-by-step solutions for CPI in 2019, 2020 and 2021.Prices ($) and Units of selected Categories of CPI2019 ($)ItemUnit2020 ($)2021 ($)Food106.005.506.752.90EnergyOther items2.501.802520.0019.0022.50(2) Being another key indicator, employment reflects the current status of an economy. Empiricalevidence shows a higher growth rate of national output (GDP) usually goes hand-in-hand with alower unemployment rate. In a study to the economic impact of the Covid-19 pandemics in theUS, you noticed that during the pandemics, unemployment rises across states in 2020. Similarly,after state economies reopened and moved quickly out of the Covid-19 recession, unemploymentrates also dropped in most states. However, there are still noticeable regional differences of howthe job market performed in different states. The table below compares unemployment rates ofArkansas, California, New York and Texas in October 2019 (10/2019), October 2020 (10/2020)and October 2021 (10/2021). Use your language to explain the differences of unemployment ratebetween Arkansas and other three states.Unemployment rate (%) of selected StatesDateArkansasCaliforniaNew YorkTexas10/20193.53.93.93.510/20205.69.88.77.310/20213.77.36.95.4

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(1) Consumer Price Index (CPI) is a price indicator to reflect price levels over time. As a key economic indicator, CPI is computed monthly by the Bureau of Labor Statistics (BLS) using a "market basket" purchased by the typical consumer each month. Suppose you are doing a study to yearly price levels (CPI) of a metropolitan area in the US. Its CPI includes three categories, Food (grocery), Energy (gasoline) and other items (all goods and services less food and energy). The table below provides you the prices of the three categories in 2019, 2020 and 2021. Also, you have the units purchased by a typical consumer in these three categories. Use 2019 as the base year, to show step-by-step solutions for CPI in 2019, 2020 and 2021.

(1) Consumer Price Index (CPI) is a price indicator to reflect price levels over time. As a key economic indicator, CPI is computed monthly by the Bureau of Labor Statistics (BLS) using a "market basket" purchased by the typical consumer each month. Suppose you are doing a study to yearly price levels (CPI) of a metropolitan area in the US. Its CPI includes three categories, Food (grocery), Energy (gasoline) and other items (all goods and services less food and energy). The table below provides you the prices of the three categories in 2019, 2020 and 2021. Also, you have the units purchased by a typical consumer in these three categories. Use 2019 as the base year, to show step-by-step solutions for CPI in 2019, 2020 and 2021.

Essentials of Economics (MindTap Course List)

8th Edition

ISBN:9781337091992

Author:N. Gregory Mankiw

Publisher:N. Gregory Mankiw

Chapter2: Thinking Like An Economist

Section: Chapter Questions

Problem 5PA

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Policy Instruments for Environmental protection

Policy Instruments for Environmental Protection link policy development and decision making to policy implementation to protect the environment and promote sustainable development. Economic growth brings great risk to the environment and often puts increased pressure on environmental resources. But it is the responsibility of the policymakers to ensure that the risk caused to the environment through developmental projects is kept in check. Environmental protection is central to sustainable development. They can be both beneficial and equitable. Environment protection policies can be used to deter environmentally damaging activities. They also improve social equity and raise revenue. 

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Please work this out. Do not understand

4. Macroeconomics is a field of economics which concerns performance, structure, behavior, and
decisions of an economy at aggregate levels. There are three key issues in macroeconomics, e.g.
output growth, price level and employment. Finish the questions of macroeconomic concepts and
issues as following.
(1) Consumer Price Index (CPI) is a price indicator to reflect price levels over time. As a key
economic indicator, CPI is computed monthly by the Bureau of Labor Statistics (BLS) using a
"market basket" purchased by the typical consumer each month. Suppose you are doing a study
to yearly price levels (CPI) of a metropolitan area in the US. Its CPI includes three categories,
Food (grocery), Energy (gasoline) and other items (all goods and services less food and energy).
The table below provides you the prices of the three categories in 2019, 2020 and 2021. Also,
you have the units purchased by a typical consumer in these three categories. Use 2019 as the
base year, to show step-by-step solutions for CPI in 2019, 2020 and 2021.
Prices ($) and Units of selected Categories of CPI
2019 ($)
Item
Unit
2020 ($)
2021 ($)
Food
10
6.00
5.50
6.75
2.90
Energy
Other items
2.50
1.80
25
20.00
19.00
22.50
(2) Being another key indicator, employment reflects the current status of an economy. Empirical
evidence shows a higher growth rate of national output (GDP) usually goes hand-in-hand with a
lower unemployment rate. In a study to the economic impact of the Covid-19 pandemics in the
US, you noticed that during the pandemics, unemployment rises across states in 2020. Similarly,
after state economies reopened and moved quickly out of the Covid-19 recession, unemployment
rates also dropped in most states. However, there are still noticeable regional differences of how
the job market performed in different states. The table below compares unemployment rates of
Arkansas, California, New York and Texas in October 2019 (10/2019), October 2020 (10/2020)
and October 2021 (10/2021). Use your language to explain the differences of unemployment rate
between Arkansas and other three states.
Unemployment rate (%) of selected States
Date
Arkansas
California
New York
Texas
10/2019
3.5
3.9
3.9
3.5
10/2020
5.6
9.8
8.7
7.3
10/2021
3.7
7.3
6.9
5.4

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