Wages And The Distribution Of Income

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Wages and the Distribution of Income

Labour Market Trends ■

Sectoral shift ✜

from agricultural and manufacturing to service-sector employment

Employment in different sectors of the UK economy 20

Agriculture Mining, energy and construction

15

Manufacturing

Millions

Services

10

5

0 1890 1900 1910 1920 1930 1939 1950 1960 1970 1980 1990 2003

Employment in different sectors of the UK economy 20

Agriculture Mining, energy and construction

15

Manufacturing

Millions

Services

10

5

0 1890 1900 1910 1920 1930 1939 1950 1960 1970 1980 1990 2003

Employment in different sectors of the UK economy 20

Agriculture Mining, energy and construction

15

Manufacturing

Millions

Services

10

5

0 1890 1900 1910 1920 1930 1939 1950 1960 1970 1980 1990 2003

Employment in different sectors of the UK economy 20

Agriculture Mining, energy and construction

15

Manufacturing

Millions

Services

10

5

0 1890 1900 1910 1920 1930 1939 1950 1960 1970 1980 1990 2003

Employment in different sectors of the UK economy 20

Agriculture Mining, energy and construction

15

Manufacturing

Millions

Services

10

5

0 1890 1900 1910 1920 1930 1939 1950 1960 1970 1980 1990 2003

Labour Market Trends ■

Sectoral shift ✜



from agricultural and manufacturing to service-sector employment

Rise in part-time employment

The growth of part-time employment in the UK 30,000

Total employment

28,000 26,000 24,000 22,000 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

The growth of part-time employment in the UK 30,000

Total employment

28,000 26,000 24,000 22,000 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

The growth of part-time employment in the UK 30,000

Total employment

28,000 26,000 24,000

Full-time employment

22,000 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

The growth of part-time employment in the UK 30,000

Total employment

28,000 26,000 24,000

Full-time employment

22,000 20,000 18,000 16,000 14,000 12,000 10,000

Part-time employment

8,000 6,000 4,000 2,000 0

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

Labour Market Trends ■

Sectoral shift ✜

from agricultural and manufacturing to service-sector employment



Rise in part-time employment



Rise in female participation rates

Labour Market Trends ■

Sectoral shift ✜

from agricultural and manufacturing to service-sector employment



Rise in part-time employment



Rise in female participation rates



Rise in temporary employment

Labour Market Trends ■

Sectoral shift ✜

from agricultural and manufacturing to service-sector employment



Rise in part-time employment



Rise in female participation rates



Rise in temporary employment



Downsizing

Wage Determination in a Perfect Market ■



Perfect labour markets ✜

everyone is a wage taker



freedom of entry



perfect knowledge



homogeneous labour

Market equilibrium

A labour market: whole market Sall workers

Hourly wage

in the market

Wm

Dall firms in the market

O Labour hours

Hourly wage

A labour market: individual employer

Slabour

Wm

Dindividual employer O

Q1 Labour hours

A labour market: individual worker

Hourly wage

Sindividual worker

Dlabour

Wm

O

Q2 Labour hours

Wage Determination in a Perfect Market ■

The supply of labour curve ✜

why upward sloping



the position of the supply curve ✦ the

number of qualified people

✦ non-wage

benefits

✦ desirability



of alternative jobs

Elasticity of supply of labour ✜

the mobility of labour

Wage Determination in a Perfect Market ■

The demand for labour: marginal productivity theory ✜

the profit-maximising approach



the marginal cost of labour (MCL)



the marginal revenue product of labour (MRPL)

Marginal physical product of labour curve x

Output

Diminishing returns set in here

MPPL O

Q of labour

Wage Determination in a Perfect Market ■

The demand for labour: marginal productivity theory ✜

the profit-maximising approach



the marginal cost of labour (MCL)



the marginal revenue product of labour (MRPL)



the profit-maximising level of employment for a firm

The profit-maximising level of employment £

MCL= W

Wm

MRPL = MPPL × Pgood

MRPL O

Q of labour

Qe

Wage Determination in a Perfect Market ■

The demand for labour: marginal productivity theory ✜

the profit-maximising approach



the marginal cost of labour (MCL)



the marginal revenue product of labour (MRPL)



the profit-maximising level of employment for a firm



derivation of the firm’s demand curve for labour

Deriving the firm’s demand curve for labour £ a

W1

MCL1

b

W2

c

W3

MCL2 MCL3

Profits maximised where MRPL = MCL MRPL O

Q1 Q of labour

Q2 Q3

Deriving the firm’s demand curve for labour £ a

W1

MCL1

b

W2

c

W3

The MRPL curve traces out the demand curve

O

MCL2 MCL3

D Q1

Q of labour

Q2 Q3

Wage Determination in a Perfect Market ■

Wages and profits under perfect competition

Wages and profits £

Surplus for firm MCL = W

W

Wages MRPL O

Q of labour

Qe

Wage Determination in Imperfect Markets ■ ■

Power in labour markets Firms with monopsony power in employing labour ✜

MCL > W

Monopsony £

MCL

ACL ≡ W (supply curve)

MRPL O Q of labour

Wage Determination in Imperfect Markets ■ ■

Power in labour markets Firms with monopsony power in employing labour ✜

MCL > W



effects on wages and employment

Monopsony £

MCL

ACL ≡ W (supply curve)

W2 W1

MRPL O

Q1 Q of labour

Q2

Wage Determination in Imperfect Markets ■ ■



Power in labour markets Firms with monopsony power in employing labour ✜

MCL > W



effects on wages and employment

Unions with monopoly power

Wage Determination in Imperfect Markets ■ ■



Power in labour markets Firms with monopsony power in employing labour ✜

MCL > W



effects on wages and employment

Unions with monopoly power ✜

unions facing competitive employers

Wage Determination in Imperfect Markets ■ ■



Power in labour markets Firms with monopsony power in employing labour ✜

MCL > W



effects on wages and employment

Unions with monopoly power unions facing competitive employers ✜ effects of wage increases on employment ✜

£

Monopoly union facing producers under perfect competition S

W1

D O

Q1

Q of labour

£ W2

Monopoly union facing producers under perfect competition S Unemployment

W1

D O

Q2

Q1

Q3

Q of labour

Wage Determination in Imperfect Markets ■

Bilateral monopoly no unique equilibrium ✜ relationship between wages and employment ✜

Bilateral monopoly £

S1 (=ACL1)

MCL1

Monopsony: no union

W1

No un

ion

n

N

o

o ni

u

MRPL O

Q1

Q of labour

Bilateral monopoly £

MCL1

x

W2

S1 (=ACL1) MCL2 = ACL2 Bilateral monopoly

W1

No un

ion

n

N

o

o ni

u

MRPL O

Q1

Q3

Q of labour

Bilateral monopoly £

MCL1

W2

x

MCL2 = ACL2 Wage can rise to W2 with no fall in employment

W1

MRPL O

Q1

Q of labour

Bilateral monopoly £

MCL1

x

W2

MCL3 = ACL3

W3

Wage can rise from W1 to W3 and employment rises to Q2

W1

MRPL O

Q1

Q2

Q of labour

Wage Determination in Imperfect Markets ■

Bilateral monopoly ✜

no unique equilibrium



relationship between wages and employment



collective bargaining

Wage Determination in Imperfect Markets ■

Bilateral monopoly ✜

no unique equilibrium



relationship between wages and employment



collective bargaining ✦ union

threats and promises

Wage Determination in Imperfect Markets ■

Bilateral monopoly ✜

no unique equilibrium



relationship between wages and employment



collective bargaining ✦ union

threats and promises

✦ employers’

threats and promises

Wage Determination in Imperfect Markets ■

Bilateral monopoly ✜

no unique equilibrium



relationship between wages and employment



collective bargaining ✦ union

threats and promises

✦ employers’ ✦ role

threats and promises

of the government

Wage Determination in Imperfect Markets ■

The efficiency wage hypothesis ✜

higher wage rates may lead to higher productivity ✦ less

“shirking”

✦ reduced

labour turnover

✦ self-selection ✦ morale

Wage Determination in Imperfect Markets ■

Flexible labour markets ✜



the flexible firm ✦ functional

flexibility

✦ numerical

flexibility

types of workers ✦ core

workers

✦ peripheral

workers

The flexible firm

The flexible firm

Core group Primary labour market Functional flexibility

The flexible firm First peripheral group Secondary labour market Numerical flexibility Core group Primary labour market Functional flexibility

Self-employment First peripheral group Secondary labour market Numerical flexibility Core group Primary labour market Functional flexibility

The flexible firm

Self-employment

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility Core group Primary labour market Functional flexibility

The flexible firm

Self-employment

The flexible firm

Core group Primary labour market Functional flexibility

Subcontracting

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

Self-employment

The flexible firm

Core group Primary labour market Functional flexibility

Increased outsourcing

Subcontracting

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

Self-employment

The flexible firm

p

ou

gr

nd

peripheral

Increased outsourcing

Subcontracting

Core group Primary labour market Functional flexibility

co Se

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

Self-employment

The flexible firm

p

ou

gr

peripheral

Increased outsourcing

Subcontracting

Core group Primary labour market Functional flexibility

nd co Se ort Sh m ter acts ntr co

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

Self-employment

The flexible firm

p

ou

gr

peripheral Pu Su blic Tra bsid ine y es

Increased outsourcing

Subcontracting

Core group Primary labour market Functional flexibility

nd co Se ort Sh m ter acts ntr co

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

Self-employment

The flexible firm

p

ou

gr

peripheral Pu Su blic Tra bsid ine y Delayed es recruitment

Increased outsourcing

Subcontracting

Core group Primary labour market Functional flexibility

nd co Se ort Sh m ter acts ntr co

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

Self-employment

The flexible firm

p

ou

gr

peripheral Pu Su blic Tra bsid ine y Delayed es recruitment

Increased outsourcing

b Jo ing ar h s

Subcontracting

Core group Primary labour market Functional flexibility

nd co Se ort Sh m ter acts ntr co

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

The flexible firm

Self-employment

Increased outsourcing

Pa tim rt e

p

ou

gr

peripheral Pu Su blic Tra bsid ine y Delayed es recruitment

Subcontracting

Core group Primary labour market Functional flexibility

nd co Se ort Sh m ter acts ntr co

Agency temporaries

First peripheral group Secondary labour market Numerical flexibility

b Jo ing ar h s

Wage Determination in Imperfect Markets ■

Flexible labour markets ✜



the flexible firm ✦ functional

flexibility

✦ numerical

flexibility

types of workers ✦ core

workers

✦ peripheral



workers

implications for the distribution of income

Causes of Inequality ■

Inequality in the UK ✜

income distribution before and after taxes and benefits

Size distribution of UK income by quintile group of households: 2001/2 Bottom 20% 4%

Next 20%

9%

Middle 20% Top 20%

15%

48%

24%

Next 20%

Income before taxes and benefits

Size distribution of UK income by quintile group of households: 2001/2 Bottom 20% 4%

Next 20%

Bottom 20% Top 20%

6% 11%

9%

Next 20%

Middle 20% Top 20%

15%

48%

45%

16%

Middle 20%

24%

22%

Next 20% Next 20%

Income before taxes and benefits

Income after taxes and benefits

Causes of Inequality ■

Inequality in the UK ✜

income distribution before and after taxes and benefits



distribution of income by source

Sources of UK household income as a percentage of gross household income Wages and salaries

Income from self employment

Investment income

Pensions, annuities

Social security benefits

Other

3% 4%

9%

1%

7%

77%

1970

2001/2 Source: Family Spending (ONS, 2002)

Sources of UK household income as a percentage of gross household income Wages and salaries

Income from self employment

Investment income

Pensions, annuities

Social security benefits

Other

3% 4%

9%

1%

1% 12% 7%

7%

4% 9% 77%

1970

67%

2001/2 Source: Family Spending (ONS, 2002)

Causes of Inequality ■

Inequality in the UK ✜

income distribution before and after taxes and benefits



distribution of income by source



distribution of wages and salaries by occupation

Average gross weekly earnings of UK full-time adult male employees: 2002 Company financial managers Medical practitioners Investment analysts Personnel managers Accountants Secondary school teachers Natural Scientists Police officers, sergeant and below Nurses Welders Records clerks Painters and decorators Bus and coach drivers General farm workers Sales assistants Bar staff Kitchen porters, hands

£0

£200

£400

£600

£800

£1,000

£1,200

£1,400

Causes of Inequality ■

Inequality in the UK ✜

income distribution before and after taxes and benefits



distribution of income by source



distribution of wages and salaries by occupation



distribution of wages and salaries by sex

Average gross weekly earnings of UK full-time adult female employees: 2002 Medical practitioners Financial managers Personnel managers Police- sergeant &below Secondary teachers Nurses Social workers Secretaries Clerks Sales assistants Bar staff Waitresses £0

£200

£400

£600

£800

£1,000

Average gross weekly earnings of UK full-time adult employees: 2002 Financial managers Medical practioners Personnel managers Secondary teachers Nurses Women's earnings

Factory lineworkers

Men's earnings

Clerks Sales assistants Bar staff 0

200

400

600

800

1000

1200

1400

Average gross hourly earnings for full-time adult UK employees (pence per hour): 1970-2002

Average gross hourly earnings for full-time adult UK employees (pence per hour): 1970-2002

Average gross hourly earnings for full-time adult UK employees (pence per hour): 1970-2002

Average gross hourly earnings for full-time UK employees on adult rates (2002)

Average gross hourly earnings for full-time UK employees on adult rates (2002)

Average gross hourly earnings for full-time UK employees on adult rates (2002)

Causes of Inequality ■

The causes of inequality ✜

differences in ability



differences in attitude



differences in qualifications



differences in hours worked



differences in pleasantness of job



differences in power



differences in the demand for goods



discrimination



differences in household composition

Percentage shares of income before and after tax by decile group of households: 2001/2 £900 £800

Gross income

£700

Disposable income

£600 £500 £400 £300 £200 £100 £0

One adult One adult, One man, One man, One man, Two adults, (not retired)two or moreone woman,one womanone woman, four or more children on state (not retired)two children children Source: Family spending (ONS,2003)

Percentage shares of income before and after tax by decile group of households: 2001/2 £900 £800

Gross income

£700

Disposable income

£600 £500 £400 £300 £200 £100 £0

One adult One adult, One man, One man, One man, Two adults, (not retired)two or moreone woman,one womanone woman, four or more children on state (not retired)two children children Source: Family spending (ONS,2003)

Causes of Inequality ■

The causes of inequality (cont.) ✜

inequality of wealth



degree of government support



unemployment

The Redistribution of Income ■

Taxation ✜

tax and income ✦ proportional ✦ progressive ✦ regressive



problems in using taxes to redistribute incomes ✦ income ✦ taxes

taxes

on goods and services

The Redistribution of Income ■

Taxation (cont.) ✜

taxation and incentives: effect of raising income taxes ✦ income

effects

• reduces disposable income: people work more ✦ substitution

effects

• reduces opportunity cost of leisure: people work less

The Redistribution of Income ■

Benefits ✜

cash benefits ✦ means-tested ✦ universal

benefits

benefits



benefits in kind



benefits and the redistribution of income

Social protection benefits in various European countries: (a) Expenditure per head: EU-15 = 100 140

2000

100 80 60 40 20

EU15

UK

Sweden

Spain

Portugal

Netherlands

Italy

Ireland

Greece

Germany

France

Denmark

0 Belgium

% of EU average

120

Source: Eurostat, 2003

Social protection benefits in various European countries: (b) % of GDP

35

1990 30

2000

20 15 10 5

EU15

UK

Sweden

Spain

Portugal

Netherlands

Italy

Ireland

Greece

Germany

France

Denmark

0 Belgium

% of GDP

25

Source: Eurostat, 2003

The Redistribution of Income ■

Benefits ✜

cash benefits ✦ means-tested ✦ universal

benefits

benefits



benefits in kind



benefits and the redistribution of income



the problem of the poverty trap



tax credits in the UK

UK tax credits, 2003/4

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