Index

abstractions 56, 233

accelerating inflation 120, 121, 156, 172 but note 186-8

accelerator 148

acceptability 153,154

account, capital and current see balance of payments

account, unit of 153

accounts, national 121 -2

advances, bank see bank loans

advertising 211, 221

affluent society 44

aggregate demand 128, 129, 143-6, 147, 170-1 but note 123-4; see also fiscal and monetary policy

aggregate supply 170,171

agriculture: input requirements 17, 23-4; fluctuations in, 69-70, 213, 2378: waees in 94

algebra 235-6, 237

allocation of resources 33ff, 204-26; and inflation 1801, 193; see also economic welfare, efficiency

Annual Abstract of Statistics 122

applied economics 232-3, 240ff

arts, subsidies to 216, 219

assets, financial 151-2, 154, 161; see also wealth; liquid 153-4,161,191; reserve 203

association, statistical 2415

assumptions, for efficient allocation 51-3, 72-9, 207ff, 225-6; of perfect competition 75; use of in economics 2334, 240 see also ceteris paribus

average propensity to consume 139

average propensity to save 137, 139

backward-bending supply curve 86-7

bads, economic 110, 176; see also pollution

balance of payments 118-20

balance of payments policy 194-9

bank credit multiplier 161

bank deposits 158-61, 174, 191-3

bank loans 158-60

Bank of England 159, 192-3

banknotes 159

barriers to entry 19-20, 76, 166-7, 210

barter 152

beggar-my-neighbour policies 199

benefit-cost analysis 215, 223

best fit see fit

black markets 193, 219

booms 118, 119, 143, 169

borrowing 14-15, 143, 144, 163-4; see also investment, bank loans

borrowing, government 1578, 189, 192

budget deficits and surpluses 189-90

budget line 35,36

building societies 154

built-in-stabilisers 189-90, 201

business confidence 118, 144,164

business cycle see trade cycle

business goals 1516

business organisation 14-15

capital, as a factor of production 18; fixed 106; human 18, 93; national 106; opportunity cost of 79; working 106; capital consumption 108, 121; goods 12-13, 106; issues 14; see also interest rate, investment

capital gains 1567

cash economy 109

cash ratio 161, 191

causal relationships 11, 173-4, 200, 244-5

central planning 48, 225

ceteris paribus 59, 61, 65, 678, 123 but note 56; see also assumptions

cheques 160

choice 34-6, 43ff

circular flow of income and expenditure 1015

claims 151

coal industry 118

coefficients, input 25; price 252

coin 160

collective bargaining 91-2,193

collective consumption 215-16

command economies 48, 225-6

Common Market see EEC

companies 14-15

comparative advantage 27-9, 199

comparative economic systems 225

comparative statics 237

competitive output 77

competitiveness of exports 196, 199

competition 52, 75-9; see also perrect and imperfect competition

competition policy 210-12, 221

complementary goods 61

composition, fallacy of 246, 247

compulsion 221

computers 236-7

conditions of demand 61; of supply 65

confidence, business 118, 144, 164; statistical see reliability

conflicts in goals see trade-offs

Consols 151, 156, 157

constant returns 25

consume, propensity to 8, 137, 13943, 164

consumer sovereignty 51

consumption, capital 109, 121; household 4ff

consumption function 127-8, 143-4; possibility curve 356

control: exchange 199; import 199; price 193, 219-21

controlled experiments 240

convex (curves) 42-3

corporation tax 105

correlation 173-4, 200, 241-5, 247

cost-benefit analysis 215, 224

cost inflation 172-3, 192-3

cost of living 107-8

costs: comparative 279, 199; constant 40; decreasing 423; increasing 40-2; marginal 62-3, 72-3; opportunity 34ff see also capital, labour and land and tradeoffs; real 34; social 213-16, 217 19; transport 30

credit 143, 144; see also bank loans

credit cards 155

crisis 118

crowding out 193

currency reserves 197

current account see balance of payments

cycle, trade 140, 145, 170, 246 but note 117-21

data, statistical 241-3

debts, settlement of 152

deductive reasoning 232-3

defence 217, 223

definition of economics 229

deflation 198

demand: aggregate 1234, 128-9, 134, 147, 170-1 but note 143-6; conditions of 61; determinants 5 5ff; derived 82; effective 55; elasticity of 68-70, 79 but note 60-1; market 57, 589; shifts in 61, 678; see also price mechanism

demand curve 56, 124-5, 234-5

demand for foreign exchange 195-7; for labour 81-5; for leisure 86; for loanable funds 1624; for money 155-8, 161-2, 168-9

demand inflation 172-3, 192

demand schedule 567, 58, 234

democracy 48

dependent variables 233

deposits, bank 158-61, 174, 191, 192; building societies 154

Deposits, Special 192

depreciation 1089,121

depressed areas 219

Depression, the Great 118,147

derived demand 118-19

devaluation 195-6, 197

dictatorship 48

differentials, wage 193, 208-9 but note 92-4

differentiation, product 16, 75-6, 210

diminishing marginal product 82-3

diminishing marginal utility 57

diminishing returns 82-3,116

directors, company 15

discretionary policies 201

disequilibrium see equilibrium

disposable income 111

distribution of income and wealth see income and wealth, distribution of

division of labour 21, 29

Domestic Product, Gross 121-2

double coincidence of wants 152

double counting 103

durable goods 6,106, 143

dynamics, economic 22, 237 -8

E.E.C. 199

earnings, transfer 94; see also wages

econometrics 240-1

economic analysis 2328

economic bads 110, 178; see also pollution

economic goods 33-4

economic growth see growth, economic

economic laws 82-3, 246

economic models 233ff

economic policy 177203, 20428, 230-3

economic problem, the 434

economic progress 178

economic rent 17, 946

economic surplus 94

economic systems 225

economic theory 232-8

Economic Trends 122

economic welfare 729, 112, 20428

economics, branches of 2302; nature of 229ff

economics of scale 21, 423, 85; see also natural monopoly

education 17, 93, 178, 209. 213, 216, 222

effective demand 55

efficiency 205, 224-5; see also allocation of resources and factor combination

effort, supply of 44, 85-8, 224-5

elasticity of demand 60-1, 68-70, 79; for labour 84

elasticity of supply 645, 68-9

endogenous vaxiables 233

Engel's Law 6

entry, freedom of 75; see also barriers to entry

enterprise 18-19, 97

equations 235-6, 238, 250, 252-3, 256

equilibrium 49-50, 657; dynamic 237-8; labour market 88-9; monopoly 49, 65-7, 72

equilibrium and optimality see economic welfare

equilibrium income 125ff; models 234-7; rate of interest 164-6

equity 181, 224 but note 204; see also income distribution

errors 201, 210, 242, 243

ex ante 124-5

excess demand and supply 49, 50, 125

exchange control 199

exchange rates 195-6, 199, 203

exogenous variables 233

expectations 144, 156-7

expectations augmented Phillips curves 185, 202

expectations, inflationary 143, 166, 184-8, 193, 202

expenditure function 126-8, 143-6

expenditure taxes 111, 122

experiments, laboratory 240

export subsidies 199

exports 13, 105, 1456; see also balance of payments and comparative advantage

ex post 124-5

external effects 52, 217, 223 but note 213-16

factor combination 14, 34-6, 43ff, 601, 205 but note 20

factor cost, G.D.P. at 121-2

factor endowments 29

factor market 82-97

factor prices 53-4, 96-7, 205; see also interest, profit, rent and wages

factors of production 16-19, 34, 80-100;opportunity cost of 41-3; mobility of 19-20, 93-4, 179, 188-9, 202, 213

failure, market 51-3, 73-9, 206-17, 226

fallacy of composition 246, 247

family expenditure 3-11

family size 910, 128

farmers income 6970, 21213

feedbacks 238

financial assets 151-2, 154, 161; see also wealth

fiscal drag 190

fiscal policy 189-90, 198, 200-2

fit, goodness of 242-3

fixed factors 20, 82, 84-5, 106

flow, circular 101-7

flow variables 150, 238

fluctuations in farm incomes 69-70, 213; in income and expenditure 117-20, 139-40, 145, 255; in prices 69-70, 213 see also inflation

food, expenditure on 5, 6, 7, 9

forecasting 201, 242, 245-6

foreign currency reserves 119, 197-8

foreign investment 109, 119, 120, 193, 196-7, 198

foreign trade, and the national income 105, 118-19, 194-9; see also comparative advantage

foreign travel 119

forty five degree line, 128-9, 133

France 115

free entry 75; see also barriers to entry

free goods 215-16, 223

freedom, personal 2201, 222; see also paternalism

frictional unemployment 122

Friedman, M. 150, 169

fringe benefits 210

full employment 171, 172, 179, 185, 226

futures markets 203

G.A.T.T. 199

G.D.P. and G.N.P, 121-2

gain from trade 27-9, 199

Galbraith, J. K. 45, 54

general price level see inflation

George, Henry 95

Germany 115

goals, business 1516; conflicts in see trade-offs; macroeconomic 17782; microeconomic 204-5

goodness of fit 2423

goods, distinguished from services 5, 6; complements and substitutes 61; economic 33-4; inferior 7, 59; normal 59; public distinguished from private 45, 52, 215-16; see also capital

gold standard 199

government activities see also subsidies and paternalism and taxes

government and agriculture 70, 212-13; economic growth 177-203; external effects 217, 223 but note 213-16; and imperfect competition 221-2, 223 but note 210-12; and income distribution 112, 204, 219, 2267 but note 207-9; and inflation 186-8, 200ff but note 1802; and price control 193, 21920; and the balance of payments 1979

government borrowing 156-7, 189, 192

government expenditure 143, 145-6, 204-28; see also P.S.B.R.

government policy objectives 177-82, 2045

government production 212, 215-16 but note 221-3

government securities 151, 157

graphs 235, 241, 249-56

Great Depression, the 118, 146-8

Gross Domestic Product 121-2

Gross National Product 121-2

growth, economic: determinants 116, 178; and government policy 177203; and inflation 1801, 200-2; and living standards 107-11, 178

growth, economic and the production possibility curve 45-6

growtn, economic in U.K. 115-17

Haines, B. 247

Hartley, K. 202

health 45, 222

hire purchase 143, 164, 221

hoarding 170

homogenous factors 93

hours of work 445, 867, 11011, 225

housing expenditure 3-11, 224

housing subsidies 219

human capital 18, 93

hyperbola, rectangular 254-5

hyperinflation 181

hypothesis testing 238-46

I.M.F. 199

I.O.U.s 151-2, 156-7

identities 148

inperfect competition in the capital market 166-7

imperfect competition in the goods market 75-9, 210-12

imperfect competition in the labour market 90-2, 210

import restrictions 199

imports 13, 145; see also balance of payments and comparative advantage

imputed income 122

incentives 225

income and expenditure equality 101-2

income determination 123-48, 165-6

income effect of a change in prices 59-60

income effect of a change in wage rates 86

income distribution 801, 20428; and consumption 5ff, 143; and inflation 111-12, 180-1; and market failure 513, 735, 207-9; and living standards 11112; see also factor prices and wages

income: disposable 111-12; national 101-22, 123-48; nominal 107, 108, 113-15; real 107-8, 113-14, 168, 169-70

income taxes 105, 111-12, 190

incomes policy see prices and incomes policies

increasing costs 402

independent variables 233

index numbers 108, 114, 122

inductive reasoning 232-3

inelastic demand 60, 79, 212-13

inelastic supply 64, 69-70, 212-13

inferior goods 7, 59

inflation 180-9; accelerating 156-7, 172-3 but note 186-8; cost and demand 172-3, 193; hyper-181

inflation and balance of payments 195-6; and income distribution 111-12, 181-2; and output 170-1, 188-9; and rates of interest 1667; and resource allocation 180-1; and Scottish dysentry 245; and unemployment 182-8

inflation in the U.K. 102, 11315, 120-1

information deficiencies 52, 210-12

injections 146

input coefficients 25

input-output tables 13, 235,48

instability see fluctuations

institutions, social 207, 209, 21516, 220-1

instruments, policy, balance of payments 197200; macroeconomic 189-93, 200-2; microeconomic 217-26

intended expenditure see planned expenditure

interdependence, international 199

inter-industry relations see input-output tables

interest rates 18, 97; determination of 161-4; nominal and real 166; structure of 1667

interest rates and balance of payments 120, 197-9; and inflation 166; and investment 18-19, 143, 162-5, 2001; and price of fixed interest securities 156-8

international co-operation 11920, 1989; investment 1089, 119, 194, 196-7, 198; specialisation 27-30; trade see comparative advantage; and the national income 105, 118-20, 194-9

International Monetary Fund 199

inventories see stocks

inverse relationships 251

investment: defined 18, 1067; determinants 144-5;fluctuationsinll8, 138-9; replacement 144

investment and economic growth 467, 116-17; and rates of interest 18-19, 143, 144, 162-5, 200; and savings 130-6, 146

investment in U.K. 116

invisible hand 51

invisible exports and imports 119

issues, notes 159; shares 14-15

Italy 116

Japan 116

job vacancies 122, 179

joint stock companies 14-15

Kevnes, J. M. 1201, 168

Keynesian economics 146-8, 150, 168-71, 172, 189, 190 but note 200-2

laboratory experiments 240

labour 17, 81; demand for 81-5; division of 21, 29; mobility of see mobility of factors; price of 88-9; supply of 85-8; see also trade unions and wages

lags see time lags

laissez-faire 51, 2067, 225-6 but note 72-3

land 1718, 946;taxation of 96

laige scale see economies of scale

law of diminishing returns 82-3,117

laws, economic 82, 246

leakages 140, 146

least squares 247

leisure 44, 86-8, 110-11, 224

licence fees 218

lighthouses 215

linear relationships 251-3

line of best fit 241, 242-3

liquidity 153-4, 161, 192; see also reserve assets

living standards 6-7, 107-12

loanable funds 163-6

loans, bank 15961, 1913; see also government borrowing

location of industry see regional poncy

London 3, 10-11, 17

long run 68-9, 167, 21213 but note 84-5

luxuries 8

macroeconomics 101, 123, 230

manufacturing sector 12

marginal cost 62-3, 72-3

marginal productivity 81-3

marginal propensity to consume 139-42

marginal propensity to save 139-42

marginal revenue 77

marginal social benefits and costs 213-16

marginal utility 57, 72-3

market considerations 16,48

market demand 57, 58

market economies 49ff

market equilibrium 49-50, 65-7, 88-9

market failure 51-3, 73-9, 206-17, 225

market imperfections 75-9, 210-12

market prices, G.D.P. at 121, 122

market supply 64

markets, agricultural 69-70, 212-13; financial 1617; factors 80-100; foreign exchange 195-7; goods 5579; international 279

mathematical economics 236

maximisation see prolit and satisfaction, maximisation of

maximum prices 21920

medium of exchange 152-3

methods of economics 11, 229-47

microeconomics 101, 229

Minimum Lending Rate 196-7

minimum prices 219-20

minimum wages 89-90, 219-20

Mitchell, J. 247

mobility of tactors 19-20, 93-4, 179, 188-9, 202, 213

models: algebraic 235-7; dynamic 237-8; economic 233ff; equilibrium 234-7; quantitative 238ff; solutions 234-7; testing 238-46; working 237-8

monetarists 150-1, 168-71, 173 but note 200-2

monetary policy 191-3, 198-9, 200-2

money 48, 149-76; demand tor 154-8, 162, 168-9; functions of 153; nature of 150-2, 173-4;near 155; price of 161ff; primitive 158; quantity theory of 167-70, 174, 200; supply of 158-61, 172, 173-4; and the rate of interest 164

money illusion 149

Monopolies and Mergers Commission 221

monopoly equilibrium 76-7, 210; in the labour market 90-2, 210; policy 211-12, 220-1; and market failure 75-9, 210-13

monopoly, natural 76, 78-9

multinational corporations 15

multiplier 139-42, 148, 165, 174, 1923;bank credit 159-60

myopia 216-17

national accounts 1212

national capital 106

National Health Service 45, 222, 223

national income 1012, 10348; of the U.K. 112-13, 122, 255-6; see also growth, economic

national product see national income

nationalised industries 21516, 2213

natural monopoly 76, 78-9, 210-12, 226

natural rate of unemployment 188-9

necessities 6-7

negative relationships 251, 2534

negotiability 151-2, 153-4

neighbourhood effects see external effects

nineteen thirties see Great Depression

nominal income 1078, 11315

non-economic activities 111

non-lineaxity 247, 2534

non-marketed goods and services 109-10

non-pecuniary advantages 93-4, 208-9

normal goods 7, 59-60

normal profit 79

normative economics 229-32, 238

North Sea oil 17

notes, bank 159

O.P.E.C. 173

objective statements see positive economics

objectives of policy 147, 177-82, 2045: of business 1718

occupations, earnings 93-4; and household expenditure 9-10

oil, North Sea 17

oligopoly 75

Oliver, J. M. 226

open market operations 191

opportunity cost 34, 35ff, 72-3; of capital 79; of labour 79; of land 94 -5; see also trade-offs

optimum 20, 73; see also economic welfare

optimum output 209-10, 211

ownership, state 15, 212, 222, 225-6

P.S.B.R. 193, 203

paradox or thrift 137, 138-9, 165, 247

patents 75-6, 210-11, 212

paternalism 216-17, 218; see also freedom, personal

pensions 80, 104, 111-12

perfect competition 73, 210-12

petrol 33

Phillips curves 1828

planned expenditures, distinguished from realised 124-5

planning 48, 221-3, 225-6

policy instruments see instruments, policy

political issues 150, 202, 215-16, 221-3

pollution 52-3, 110, 117, 219-20, 226 but note 218-19

population: as a factor of production 17, 87-8, 116; and living standards 108; and demand 58, 143

portfolios 157, 161, 167, 174, 192

positive associations 251

positive economics 230-2

post hoc ergo propter hoc 245

precautionary motive 155-6

prediction see forecasting

predictor variables 233

price control 193, 219-20, 226; also prices and incomes policies

price index numbers 108, 113-14, 122: in the U.K. 114

price mechanism 49-51, 125; see also laissez faire

price stability 69-70, 212-13; see also inflation

prices and incomes policies 193, 202, 226

private versus social wants 45, 213-15, 217-19

probability 2423

product differentiation 16, 756, 210-11

product, marginal 82-3

production frontier 36 ff

production possibility curve 36ff

productivity 18, 91-2; and inflation 182-3, 200-1 see also growth, economic; and the production possibility curve 47; and wages 813, 93, 2089 see also efficiency

profit maximisation 15-16, 51-2, 79

profit, normal 79

profits 18-19, 97

progressive taxation 190, 219

prohibitions 217, 220-1

propensity to consume 139-40, 142-4

propensity to save 136-7, 139-40, 165

proxy variables 239

psychological factors 3, 20, 1434

public corporations 15

public goods 45, 52, 215-16, 222

Public Sector Borrowing Requirement 193, 203

pulsars 232-3

purchasing power parity 203

quality 110

quantification 233-4, 240, 241-2

quantity theory of money 167-70, 174, 200

random errors 242-3

rate of exchange 195-7, 199-200, 203

rate of interest see interest

rational expectations 203

rationing 50, 220-1

real costs 34; see also opportunity costs

real income 107-8, 114-15, 168, 170

realised expenditure 1245

recession 118, 120

rectangular hyperbola 254-5

regional expenditure 3

regional policy 213, 219

regulations 215, 220-1

reliability, statistical 209, 2423, 254-5

rent control 3, 10-11, 221

rent, economic 17, 94-6

reserve assets 203

reserves, foreign currency 119, 197-8

resource allocation see allocation of resources

restrictions, import 199

Restrictive Practices Court 221

returns to scale 21, 42-3, 85

revenue, marginal 76-7

risk 19, 93, 167

sample data 242-3

satisfaction, maximisation of 512, 72-3

save, propensity to 137, 13944, 165

savings: defined 131; function see propensity to save

savings and Income distribution a; ana investment 130-5, 146; and myopia 216-17; and the rate of interest 165-6, 200-1

scale of production 22, 25, 423, 85; see also natural monopoly

scale on graphs 254-5

scarcity 33-4, 43ff

scatter diagrams 241, 242, 243

science of choice 43

scientific method 229, 230-3

scope and method or economics 229-47

Scotland 118

Scottish dysentiy 245

seasonal unemployment 122

securities, fixed interest 156-7; government 151, 156

self-interest 51

self-sufficiency 478

services 5, 6

shares, company 14-15, 151

shifts of curves, of aggregate expenditure 136-7, 144; of supply and demand 61, 65, 67-8

shipbuilding 118

short run 68-9, 84-5, 166-7, 201, 216

signalling function of prices 49, 50, 217-18

significance, statistical 243

skilled labour 17,41, 82, 93

slopes of curves 241, 2513; see also elasticity; of aggregate demand and supply curves 170-1; of budget line 34-6; of demand curves 59; of production possibility curves 38-43; of savings function 140; of supply curves 63

slump 118-20, 140-1, 170

Smith, Adam 21, 51

social benefits and costs 213-16, 217-19

social institutions 52, 207, 209, 216, 220-1

social sciences 3, 229-30

social security 80, 221

social wants 45

sociology 3, 229-30

solutions to economic models 2345

Soviet Union 48

special deposits 192

specialisation ana efficiency 20-1, 29, and money 152-3; and international trade 27-9

speculative capital movements 1967

speculative investment 180-2

speculative motive 1568

spillover effects see external effects

stabilisation policy 166, 189-93, 200-2; see also price stability

stagflation 1201

standard of living 67, 10712

state control 2213

state intervention 177-203, 204-228; see also government

state ownership 15, 211-12, 222, 225

statistical reliability 209, 2423, 254-5

statistical tests 240-6

steel industry 118

stocks 106; distinguished from flows 150-1, 238; unplanned changes 135-6, 148

store of value 153

structural unemployment 122, 179, 185 but note 188

subsidies, in the national accounts 121, 122; and resource allocation 217-19; effect on market price 72; housing 224; to exporters 199; to the arts 216, 219

substitutes 22, 60, 61, 64

substitution effect: of a change in price 5960; of a change in wage rates 85-6

suicides 244

supply: aggregate 171; backward bending 856, 87; conditions of 65; determinants of 62-3;elasticity of 645, 689; market 64; shifts in 65, 67-8

supply curve 623, 124-5, 2356; schedule 623, 2345

supply of effort 44-5, 85-7, 224-5; of factors 857, 912, 945; of foreign exchange 195-6; of labour 85-7; of loanable funds 1624; of money 158-61, 172-4

takeovers 15

tangents 253-4

targets see goals

tariffs 199

tastes 9--10, 67-8

taxes: and equity 224-5; and income distribution 11112, 218-19; and incentives 224-5; and market price 70-2; and the national account 104-5, 111-12, 121-2; and resource allocation 215-16, 217-19;on companies 104-5; on expenditure 111-12, 114; in imports 199; on income 104-5, 111-12, 191, 219-20; on land 95-6

technical progress 18, 85, 116, 143, 188

television 215

testing economic models 23846

theory, economic 233-8

thrift, paradox of 1389, 165, 247

time lags: and agriculture 6970, 212-13, 237-8; and demand for money 152-3, 155; and elasticity of supply 64; and factor supply 1920, 22, 84-5; and market price 68-9. 212-13, 237-8; and quantity of money 170, 201; see also short run and long run

token money 158

trade cycle 117-20, 140, 145, 170, 255

trade unions 91-2, 172, 184-8, 193

trade-offs 177, 182-8

traditional societies 47-8

training and productivity 17, 178-9, 213; and wages 93, 209

transactions motive 155

transfer earnings 94

transfer payments 80, 104-5, 111

transformation curve 38-9

transport costs 30

travel, foreign 119

treasury bills 192

unemployment and balance of payments 198: and inflation 179, 182-9; and trade unions 91, 184-6; and wages 89-90, 182-8, 219-20

unemployment, structural 122, 179, 185, 188; types of 122, 179, 239; in U.K. 120, 146-8

unit elasticity of demand 60-1, 254

unit of account 153

U.S.A. 45, 115, 118

utility, marginal 57, 73-5

V.A.T. 122

vacancies, job 122, 179

vaccination 214

value, store 153

value added 1034

value judgements 53, 74, 209, 239 but note 2302

variable factors of production 20, 82, 84-5

variables: dependent 233; endogenous and exogenous 233; independent (explanatory and predictor) 233; proxy 239; stock and flow 238

veil of money 14950

velocity of circulation 168-70

visible imports and exports 119

wage differences 92-4, 193, 208

wages: in U.K. 80-1; market determination 87-9; minimum 89-90, 219; and inflation 182-9; and trade unions 912, 1829

Wales 3, 10-11, 118

wealth, distribution of 51-3, 208-9; see also income distribution; stock of 143, 150-1

wealth of Nations 21

weather 245

weighted average 107-8, 122

welfare, economic 72-9, 112, 204-28

withdrawals 146

work effort see effort, supply of

working capital 106

working models 237

X-inefficiency 78-9, 210, 212

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