Unit 3.1 - Measuring Economic Activity and Illustrating Its Variations

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A composite measure of how efficiently a country converts its ecological footprint into long, satisfying lives for its people.

Happy Planet Index

A measure of well-being that assesses the influence of technology, governance, and social norms on communities.

Happiness Index

An alternative measure evaluating well-being through 11 key factors related to living conditions and life quality, launched by an international organization.

The Better Life Index (BLI)

State the formula: GNI

GNI = GDP + Net factor income from abroad Gross National Income equals Gross Domestic Product plus net income flows from abroad.

State the formula: The Happy Planet Index (HPI)

HPI = (Well-being × Life expectancy × Inequality) ÷ Ecological footprint The Happy Planet Index is calculated by combining an average subjective well-being score, life expectancy, an inequality of outcomes adjustment, and dividing by the country's ecological footprint per person.

State the formula: Use of GDP deflator

Use of GDP deflator A GDP deflator is used to convert GDP at current prices to GDP at constant prices, thereby adjusting for inflation.

GNI

Gross National Income (GNI) is a measure of national income that includes all factor incomes earned by residents, including net income from abroad. It differs from GDP by accounting for income from international sources, providing a broader view of economic health.

Happiness Index (HI)

A composite index devised by the United Nations to gauge well-being beyond mere economic measures. It assesses individuals' self-rated happiness based on various criteria, highlighting the limitations of GDP as a progress metric.

OECD

An international organization that aims to promote policies enhancing global economic and social well-being. It introduced the Better Life Index to evaluate and compare well-being across countries based on several quality of life metrics.

A period in the economic cycle marked by a decline in gross domestic product for two consecutive quarters.

recession

An adjusted measure of economic output that accounts for environmental damage and degradation.

Green GDP

The bottom of a recession in the business cycle, where consumption, investment and net exports are all at a low point, bringing negative growth, business closures and cyclical unemployment.

slump

The maximum sustainable level of real GDP achievable over the long term.

potential output

The pattern of expansion and contraction in economic activity within a country over time.

business cycle

The phase of the business cycle where economic activity rises, driven by an increase in any component of aggregate demand — and where the general price level rises with it.

boom

The phase that follows a downturn, marked by an increase in GDP after reaching the lowest point in the economic cycle.

recovery

The stage in the economic cycle when activity reaches its highest point before a downturn.

peak

State the formula: Green GDP

Green GDP = Nominal GDP – Environmental production costs Green GDP adjusts nominal GDP by subtracting the environmental costs associated with producing goods and services.

contraction

A phase in the business cycle marked by decreasing economic activity, characterized by falling GDP and rising unemployment. It serves as an indicator of economic slowdown, potentially leading to recessions.

exogenous shocks

Unexpected events that can severely disrupt an economy's performance, such as natural disasters, pandemics, or financial crises, leading to significant deviations from the expected business cycle and potential output.

expansion

A phase in the business cycle defined by increasing levels of economic activity, including rising GDP and employment. It signifies growth and prosperity within an economy, impacting overall economic conditions.

fiscal stimulus

A deliberate increase in government spending or cut in taxation intended to raise aggregate demand and pull an economy out of recession.

shadow economy

Economic activities that are not officially recorded or reported, making it difficult to accurately measure national output. The shadow economy can significantly impact GDP and GNI figures, as it includes transactions that evade regulation and taxation.

trade cycle

The fluctuation of economic activity over time through booms, recessions and recoveries, also called the business cycle. It shows where an economy sits against its trend growth.

trough

The lowest point of the business cycle, reached during a recession when activity is at its weakest. Consumption, investment and net exports are all depressed.

The pricing of goods and services that reflects their value at the moment data is gathered, without adjustments for past valuations.

current prices

State the formula: Nominal GDP

Nominal GDP = C + I + G + (X - M) Add consumption expenditure (C), investment expenditure (I), government spending (G) and net exports (exports minus imports, X - M) measured at current prices to obtain nominal GDP.

Consumption (C)

The total spending by households on goods and services, which is a key component of GDP calculations and reflects consumer behavior in the economy.

Government expenditure (G)

Government expenditure refers to the total spending by the government on goods and services, which is a component of nominal GDP calculated using the expenditure method. It is essential for understanding the overall economic activity as it contributes to the GDP alongside consumption, investment, and net exports.

A measure of income that reflects current market prices, including the impact of overall price fluctuations.

Nominal GNI

The total value of all final goods and services made within a country in a year, including the output of foreign-owned firms operating there — the most common measure of national income.

Gross Domestic Product (GDP)

State the formula: Net factor income from abroad

Net factor income from abroad = Factor income received from abroad - Factor income paid abroad Calculates the net cross-border flow of income earned by factors of production.

Expenditure approach

A method for calculating GDP by summing consumption, investment, government expenditure, and net exports. This approach emphasizes the total spending in an economy, which is essential for understanding overall economic activity and determining GNI when net factor income from abroad is added.

Measures that eliminate the impact of price level changes.

Real GDP and real GNI

Two measures referencing current pricing, sensitive to variations in both output and price levels.

Nominal GDP and nominal GNI

State the formula: Real GNI

Real GNI = (Nominal GNI / GDP deflator) × 100 Converts nominal GNI into real GNI using the same price deflator used for GDP (after nominal GNI is calculated by adjusting GDP for net factor income from abroad).

Average income per person derived from adjusted national income.

Real GNI per capita

Average output or income calculated per person.

Resulting figure

The conversion rate at which the same basket of goods costs the same in two countries — used to judge whether a currency is under- or over-valued against its market rate.

PPP adjusted exchange rate

State the formula: Gross National Income per capita

Gross National Income per capita = Real GNI ÷ Population size

State the formula: Real GNI per capita

Real GNI per capita = Real GNI / Population Calculates average real income per person by dividing a country's inflation-adjusted GNI by its population.

Exchange rate

The value of one currency in terms of another, which can vary significantly and affect international comparisons of income. It is crucial to understand that market exchange rates may not accurately reflect the purchasing power of currencies, leading to potential misinterpretations of economic data between countries.

State the formula: GDP (expenditure approach)

GDP (expenditure approach) = C + I + G + (X - M) Calculation of national expenditure on final goods and services.

State the formula: O

O = Y = E Identity expressing that national output, national income and national expenditure should be equal in theory.

State the formula: S + T + M (S + T + M)

S + T + M = I + G + X Equilibrium condition where total leakages equal total injections (investment, government spending, exports).

State the formula: W

W = S + T + M Total leakages (withdrawals) equal the sum of savings, taxes and imports.

national expenditure

The aggregate value of all spending on newly produced goods and services in an economy, which mirrors national income and output, emphasizing the flow of financial resources.

national income (Y)

The total income earned by a nation's residents, which can be measured through various approaches, including output and expenditure methods, reflecting the overall economic activity.

national output

The complete value of all final goods and services produced within a country during a year, representing the economy's production capacity and aligning with national income and expenditure measures.

nominal GDP

The value of all final goods and services produced within a country in a given year, measured using current market prices without adjusting for inflation, reflecting the economy's output at face value.

taxes (T)

The revenues collected by the government from households and firms, which are used to fund public spending and services, playing a critical role in the circular flow of income.

An alternative measure of well-being that evaluates living conditions and quality of life based on 11 criteria.

OECD Better Life Index

Indicates the average amount of income or output available per person.

Per capita

Modifications for better international income comparisons considering living expenses.

PPP adjustments

The value of national income adjusted for inflation, representing the purchasing power over time.

Real GNI

Unreported economic activities that lead to underestimations in GDP or GNI.

Hidden or shadow economy

State the formula: Happy Planet Index

HPI = (Well-being × Life expectancy × Inequality) ÷ Ecological footprint This formula calculates the Happy Planet Index.

A method used to gauge the economic activity level in a country.

National income accounting

The value of all goods and services produced in a country during a year.

national income

government (national) debt

The sustainable level of government or national debt, which is crucial for maintaining economic stability and ensuring that a country can meet its financial obligations without compromising future growth.

macroeconomic objectives

The four key goals of macroeconomic policy, which include economic growth, low unemployment, price stability, and sustainable government debt, guiding economic performance and policy decisions.

Expenditures made by the public sector.

Government spending

Spending by individuals and households on goods and services.

Consumption expenditure

The amount spent by households and individuals on various goods and services, forming the largest part of overall national spending.

Consumption expenditure (C)

The approach that assesses the total value of all finished goods and services produced in a year within an economy.

The output method

The approach to calculating GDP by summing consumption, investment, government spending, and net exports.

expenditure method

The calculation that reflects the balance between what a nation earns from selling goods abroad and what it spends on foreign goods.

Net export expenditure (X – M)

The calculation that represents the balance between a nation's earnings from sales abroad and its spending on foreign goods.

Net export expenditure

The method of measuring economic activity that accounts for total spending on newly produced goods and services in a year, including consumption, investment, government spending, and net exports.

national expenditure (E)

The method of measuring economic activity that reflects the actual value of all final goods and services produced within an economy each year.

national output (O)

The method that totals all earnings from labor, land, capital, and enterprise within an economy.

The income method

The spending by firms within the economy aimed at increasing their capital stock and production capacity.

Investment expenditure (I)

The type of spending aimed at increasing a firm's capacity and capital stock.

Investment expenditure

State the formula: GDP

GDP = C + I + G + (X - M) Expenditure method expression where C = consumption, I = investment, G = government spending, X = exports and M = imports.

GDP

The total monetary value of all goods and services produced within a country during a specific time period, including output from foreign-owned businesses, indicating the level of economic activity.

net exports (X – M)

The difference between a country's total exports and total imports, which reflects the trade balance and impacts GDP calculations, showing how much a country sells abroad versus what it buys.

A measure that includes net income from abroad in addition to domestic production.

GNI

The balance of income earned from foreign investments and income paid to foreign entities within the country.

Net factor income from abroad

The value of a nation's final goods and services measured at current prices, plus net factor income earned from abroad.

Nominal gross national income (GNI)

State the formula: Nominal GNI

Nominal GNI = Nominal GDP + Net factor income from abroad Add net income earned from abroad (positive or negative) to the country’s nominal GDP to obtain nominal GNI. For example, with Consumption = $150bn, Investment = $60bn, Government spending = $55bn, Exports = $31bn, Imports = $28bn, and Net income earned abroad = -$8bn, GDP = 150 + 60 + 55 + (31 - 28) = $268bn, so GNI = 268 + (-8) = $260bn.

Multinational corporations

Firms that operate in multiple countries, producing goods and services across borders, which can influence the GNI of host countries by repatriating profits to their home nation.

Net income earned abroad

A measure of the income difference between what residents earn from foreign investments and what foreign investors earn from domestic investments. This factor is important for calculating Gross National Income (GNI), reflecting international economic interactions.

Repatriated profits

Earnings that multinational companies transfer back to their home country from overseas operations. This process can lower the GNI of the host country, illustrating the financial flows between nations.

A measure that adjusts for price fluctuations over time.

Real GDP

A statistical measure that reflects the overall change in price levels in an economy over time.

GDP deflator

Values that have been adjusted to remove the effects of inflation, reflecting true economic value.

Constant prices

State the formula: Real GDP (Real GDP)

Real GDP = Nominal GDP GDP deflator Real GDP = (Nominal GDP / GDP deflator) × 100

General price level

An indicator of the average prices for goods and services in an economy. This metric is crucial for adjusting nominal figures to real terms, allowing for accurate comparisons of economic activity over time.

A measure obtained by dividing the total economic output adjusted for inflation by the population size.

Real GDP per capita

The rate that allows individuals in different nations to buy an identical set of goods and services.

Purchasing power parity (PPP)

State the formula: Real GDP per capita

Real GDP per capita = Real GDP ÷ Population size Real GDP per capita = Real GDP / Population

State the formula: Real Gross Domestic Product per capita

Real Gross Domestic Product per capita = Real GDP ÷ Population size Real Gross Domestic Product per capita

Big Mac Index

A humorous tool for comparing purchasing power parity (PPP) by looking at the price of a Big Mac in various countries. While it offers insights into currency valuation, its accuracy can be limited by product selection.

Cost of living

The total amount of money required to maintain a certain standard of living, which varies widely between different regions. It is essential for understanding how purchasing power differs across economies.

Market exchange rate

The rate at which one currency can be exchanged for another in the global market. It influences economic comparisons and assessments of currency valuation relative to purchasing power.

Population size

The total number of people residing in a country, which significantly affects GDP and GNI per capita calculations. It highlights income disparities between nations with large populations versus small ones.

Standard of living

A measure of economic well-being for individuals in a country, typically evaluated through real GDP or GNI per capita. It indicates the average income and quality of life, facilitating comparisons of welfare between different nations.

State the formula: Net Exports (Net Exports)

Net Exports = Exports - Imports Calculate the value of the country’s net exports from the figures above.

State the formula: Net exports

Net exports = X - M Net exports equals total exports (goods and services) minus total imports (goods and services).

Government expenditure

A government spending category encompassing all public consumption and investment expenditures within a country. It plays a vital role in national income statistics, influencing economic performance and net exports.

Gross Domestic Fixed Capital Formation

The part of investment expenditure that goes into a country's stock of buildings, machinery and other fixed assets, counted alongside consumption, government expenditure and net exports when national income statistics are compiled.

Investment / Gross domestic fixed capital formation

Investment, or gross domestic fixed capital formation, refers to the total value of a country's net additions to its fixed assets, which includes investments in infrastructure and buildings. This is a vital component of GDP, reflecting economic growth and future productive capacity.

Private Consumer Expenditure

A component of national income statistics representing the total spending by households on goods and services within a specific period, which is crucial for calculating GDP and understanding consumer behavior in the economy.