Oct 11, 2017 - Conditional (or Means Tested) Basic Income (CBI) ...... and B. Sacerdote (1999) Estimating the Effect of Unearned Income on Labor Supply,.
LISER, Luxembourg 11 October 2017 10.30 – 12.30
Basic income policies: theory and empirical evidence Ugo Colombino EST (Torino), CHILD (Torino), IZA and LISER (Luxembourg)
1
Outline 10.30 – 11.30 • Focus on Unconditional Basic Income • Theory: • Equity and Efficiency • Problems: costs, incentives etc • Evidence: • Quasi-experiments • Experiments • Simulations 11.45 – 12.30 • Some results from Islam & Colombino (work-in-progress)
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Focus on UBI • UBI = Unconditional Basic Income
• Other names: Citizen’s Income, Social Dividend etc. • What is it?
3
What is it? • Compare UBI with:
• Conditional (or Means Tested) Basic Income (CBI) • Negative Income Tax (NIT) • In-Work Benefits (IWB) or Wage subsidies or Tax Credits etc.
4
CBI Net
Welfare- (or poverty-) Trap: there is no incentive to work for a gross income lower than G Cheating: if your gross income is larger than G, you might have an incentive to hide (part of) it in order to get the subsidy and work less Admistration costs: monitoring gross income levels, filling forms, cheating, errors, litigation etc.
G
Gross G
Stigma: stigmatization, low take-up rate
5
NIT Net
Same problems as with CBI but to a lesser extent
Gross G
6
UBI Net
No welfare-trap problem No cheating problem Low administration costs No stigma
G
Gross
7
UBI vs CBI and the poverty (welfare) trap Net
UBI
CBI G
The individual will work under UBI but not under CBI
Gross
8
IWB Net
Close to EITC, Tax Credits, Inwork benefits etc
Problems as with CBI but good incentives to work
Distortion: gives incentive to lowproductivity sectors
G
Gross
9
Why is UBI interesting? • End of 2° WW to mid-70s: some sort of CBI in most Western Countries • Problems with CBI: bad incentives, high administration costs • Friedman 1962 proposed NIT as an alternative • Rather than Friedman’s NIT, many countries progressively introduced some form of IWB (80s – 90s) or more strict conditioning • New millenium: Globalization, Automation, Big Crisis. • Re-allocation of jobs, destruction of skills, precarization, polarization etc. • Need for a redesign of welfare 10
Why is UBI interesting? • Cuts on transfers and/or more sophisticated CBI and IWB • New «traps» • Complex and costly systems…
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New «traps», Complex and costly systems… (Santens 2016)
12
How to apply for assistance if you are poor... (Santens 2016)
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Misallocations of transfers (OECD 2017)…
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Why is UBI interesting? • New interest in UBI (and NIT) …
• Simple, trasparent, easy to administer, possibly good incentives etc. • Old idea: Moore, Paine (1797), George, Hayek (1944), Lange, Simon, Meade (1989) , Van Parijs (1995), Atkinson (1995, 2015), Vernon Smith etc.
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Theory: Efficiency • No traps, no stigma, no cheating, low administration costs • Incentives to new entrepreneurship and more efficient occupation and education choices through: • reduction of risk-aversion (Standing 2008) • enlargement of the opportunity set (Blattman et al. 2014, Haushofer and Shapiro 2016)
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Equity: Thomas Paine • T. Paine (Agrarian Justice, 1797). A modern reformulation: o Common resources (land, air, water, spectrum etc.) belong to everyone in principle (Chart of the Forest 1217). o Free access to common resources is inefficient. o Private property or centralized management more efficient («enclosure», XVIII – early XIX centuries) o The original owners (everyone) should be compensated with the equivalent of the surplus obtainable under free access UBI o
A modern implementation: Alaska Permanent Fund Dividend (about $2000)
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«Common»: Equitable but Inefficient ω = disutility of work (reservation wage H = total population [AP(H) – ω]H = total surplus AP(H) ω AP
MP H
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«Enclosure»: Efficient but not Equitable ω = disutility of work (reservation wage H* = insiders [AP(H*) – ω]H* = total surplus (max)
AP(H*)
Insiders get some fraction of total surplus.
AP(H)
Outsiders get no surplus
ω AP
MP H*
H
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«Enclosure» with compensation (UBI?): Efficient and Equitable ω = disutility of work (reservation wage H* = insiders [AP(H*) – ω]H* = total surplus (max)
AP(H*)
Both insiders and outsiders get some fraction of total surplus. The minimum compensation (UBI?) is the surplus under the Common
AP(H) ω
AP
MP H*
H
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«Thomas Paine» today • Globalization and Automation are more efficient ways of production and exchange, just as enclosures led to a more efficient use of common resources • However, automation and globalization destroy established skills and rents (Sacks & Kotlikoff 2012)
• Part of the benefits from globalization and automation should be used to compensate the destruction of previous skills and rents • UBI helps the compensation and the re-allocations required by automation and globalization (Sacks & Kotlikoff 2012, Standing 2012)
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Globalization and Automation • Cowen, T. Average is over, 2013 • Hughes, J. J. “A strategic opening for a basic income guarantee in the global crisis created by AI, robots, desktop manufacturing and biomedicine.” Journal of Evolution and Technology 24:1 (2014): 45–61. • Krugman, P. “Sympathy for the Luddites.” The New York Times, June 13, 2013. • Marchant, G. E., Y. A. Stevens, and J. M. Hennessy. “Technology, unemployment & policy options: Navigating the transition to a better world.” Journal of Evolution and Technology 24:1 (2014): 26–44. • Brynjolfsson, E. and A. McAfee (2014) The Second Machine Age. Work, Progress and Prosperity in a Time of Brilliant Technologies, W. W. Norton & Company. • Sachs, J. D., and L. J. Kotlikoff. Smart Machines and Long Term Misery. NBER Working Paper No. • 18629, 2012. • Spence, M. “Globalization and unemployment: The downside of integrating markets.” Foreign Affairs, July/August 2011. • Standing, G. (2011) Precariat. The dangerous class, Bloomsbury Academic Press. • Standing, G. “Responding to the crisis: Economic stabilization grants.” Policy & Politics 39:1 (2012): 9–25. • Acemoglou and Restrepo, The race between machine and man, 2016, http://www.nber.org/papers/w22252
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Sacks & Kotlikoff 2012
• XVII – XVIII centuries, industrial revolution • Luddites (early XIX century): «machines substitute workers and lead them and society to misery» • Retort to Luddites: machines make workers more productive and drive up their wages
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Sacks & Kotlikoff 2012
• Machines substitute unskilled labour • Machines designed and run by skilled labour • College wage premium (US): 40% (2000) 80% (2012) • Top decile income distribution (US): 35% (1970) 50% (2012)
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Sacks & Kotlikoff 2012
• Skills require time • Older employess are more skilled • Older employees (and retired) own a large fractionb of capital • Median income of male employees (45-54 vs 25-34) • 1950: +4% • 1970: +11% • 2011: +41%
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Sacks & Kotlikoff 2012
• OLG model • Young workers start as unskilled • They can save to get skills and invest in capital • Machines are complementary to skilled labour but sustitute unskilled labour • Young workes become poorer. They save less and invest less in human and physical capital • The equilibrium path may lead the whole economy to misery • The way out call for intergenerational redistribution (UBI?)
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Sacks & Kotlikoff 2012 Q = Q(N, S) = output, CES with elasticity εSN N = N(eM, L) = intermediate product, CES with elasticity εLM S = skilled labour L = unskilled labour e = machines efficiency
Wi = Qi (competitive economy), i = L, S
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Sacks & Kotlikoff 2012
d ln(QL ) SN L LM unskilled labour may loose from tech progress d ln(e) LM d ln(QS ) 1 L 1 S 0 skilled labour gains from tech progress d ln(e) SN
L = share of unskilled labour product S = share of skilled labour product 28
Theory: Equity and Efficiency • The «share» version of UBI o o
J. Meade, Agathotopia: The Economics of Partnership, 1989 D. Ray, The Universal Basic Share (2016 post on Ray’s blog Chhota Pegs)
• The «insurance» version of UBI o
R. Shiller, livelihood insurance (New Financial Order: Risk in the 21st Century, 2003)
• The «intergenerational transfers» version of UBI o
Sacks & Kotlikoff 2012
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Theory: Equity and Efficiency • The «too poor to be efficient» argument (P. Hill, Population, prosperity and poverty, 1977) • Some degree of universal and unconditional redistribution saves on wasteful rent-seeking (Milgrom & Roberts, 1990)
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Problems • Bad incentives for labour supply? o o
Income effect on low income people Substitution effect on high income people
• Gives money to the rich «surfers»? o false problem: o
with a flat tax rate = t, the transfer is «exhausted» at gross income UBI/t
• «The poor can’t handle the money» argument o «… After all, if they knew how to manage money, how could they be poor in the first place?...» (Ronald Reagan, I think)
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Quasi-experiments • Imbens et al. (1999) o Study on lottery winners in the US. No effect on labour supply for amounts around $15000 per year. Minor effects for larger amounts (around $80000)
• Marx et al. (2008) o Study on winners of Win for Life lottery (Belgium). Minor or insignificant effects on labour supply
• Akee et al. (2010) o Longitudinal study in North Carolina (recipients of a Govenment transfer). Big effects on human capital investments
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Experiments • Widerquist (2005) – survey of US experiments in the 70s • Blattman et al. (2014) - Uganda • Pasma (2014) – survey • Haushofer & Shapiro (2016) – Kenia (GiveDirectly) • Standing (2017) - survey • Most of the (recent) experiments confirms some of the positive efficiency effects: • more efficient choices • increased propensity to entrepreneurship
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Uganda 2008 • Blattman, Fiala and Martinez, Generating Skilled SelfEmployment in Developing Countries: Experimental Evidence from Uganda, QJE, 2014 • Government + World Bank experiment • 15-35 years old, peasants: earnings = approx. $1 per day • 6000 treatment, 6000 control • Lump sum transfer $365.
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Blattman et al. 2014 • Focus on new entrepreneurship • Two periods, no credit market • U = u(c1) + δu(c2) = intertemporal utility • s = savings • y = worker earnings • F = fixed cost of entrepreneurship • K = capital • A = ability • f(A,K) = entrepreneurs earnings 35
Blattman et al. 2014 Worker Max U s.t. c1 + s = y + w c2 = y + s New entrepreneur Max U s.t. c1 + s + F + K = y + w c2 = f(A,K) + s 36
Blattman et al. 2014
With endowment wL and earnings y, the worker will choose E: no savings, consume wL + y. Given the cash transfer, the worker will save for K, pay the fixed cost F and turn to entrepreneurship in period 2
37
Uganda 2008, four years after • Most of the $365 used to get a new skill (tailor, carpenter, auto mechanic, hairdresser ecc.). • Treatment group income is 40% larger than control group’s • 41% of the treatment group left agricolture. 29% in the control group
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Planned experiments • Netherlands, local pilot in Utrecht and other ciites • Canada (Ontario), announced by Government • Silicon Valley (Oakland), pilot (100 households) to be run by YCombinator • Kenya (GiveDirectly), pilot completed, large experiment to come (director A. Krueger, former Chairman of the Council of Economic Advisers) • New Zeland? • Scotland?
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Finland (KELA) • 2017-18 • Assess whether UBI can be used as an alternative to current social assistance • Focus on incentives • 2000 unemployed • EUR 560 per month, tax free
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Simulations • Non-behavioural simulation: o OECD (2017), non-behavioural simulation for European countries, focun on fiscal sustainability, winners and losers.
41
Simulations • Calibrated DSGE models: o Van der Linden (2004), calibrated DSGE: UBI optimal o
Fabre et al. (2014), calibrated DSGE: UBI good but traditional UI better
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Simulations Behavioural microsimulation Islam and Colombino (2017): UBI good Bargain & Doorley (2016): no bad incentives from extending transfers Sommer (2016): Germany, positive effects of UBI on labour supply Colombino (2015): Italy, UBI good (depends on welfare criterion) Jensen et al. (2014): Germany, UBI good Clavet et al. (2013): Quebec, UBI too expensive Horstschräer et al. (2010): Germany, unconclusive Scutella et al. (2004): Australia, UBI promising Colombo et al. (2008): Germany, unconclusive
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The case for NIT+FT in Europe An empirical optimal taxation exercise
N. Islam (LISER, Luxembourg) & U. Colombino (EST, Turin, Italy) Work-in-progress
44
Outline • CBI, UBI and IWB as special cases of NIT • Optimal policies
• Computational Approach: combining microeconometrics, microsimulation and numerical optimization • Results for six European countries • Identifying a general rule?
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CBI, UBI and IWB: special cases of NIT CBI
NIT
Net
Net
G
G
Gross
Gross
G
46
CBI, UBI and IWB: special cases of NIT UBI
NIT
Net
Net
G
G
Gross
Gross
47
CBI, UBI and IWB: special cases of NIT IWB
NIT
Net
Net
G
Gross
Gross
48
Different profiles of NIT Concave
Convex
Net
Net
G
G Gross
Gross
49
Differences in interpretation/implementation Friedman noted the substantial equivalence of NIT and UBI
Friedman was right in a static scenario However, there might be differences in an intertemporal scenario with uncertainty This can be seen more clearly by distinguishing two different interpretations or implementations of NIT or UBI… 50
UBI: up-front payment implementation Net
Supporters of UBI usually think this implementation
At the beginning of the month you receive G Your own income is then taxed a a rate t G
Gross
51
UBI: ex-post conditional transfer im plementation Net
Supporters of some form of NIT usually think of UBI as a special case of NIT with this implementation
At the end of the month, you receive G –tY provided Gross < G/t
G
Gross
G/t
52
Optimal Policies • Searching for optimal (= Social Welfare maximizing) CBI, UBI, IWB and NIT in European countries • NIT is expected to be no worse – social welfare-wise – than its special cases • However, CBI, UBI or IBW might be preferable according to other criteria (poverty, labour supply etc.) • Work-in-progress, preliminary results
53
Optimal Policies We depart from the traditional approach of fiscal reform evaluation: we look instead for optimal reforms We also depart from the approach of computing optimal policies using theoretical formulas (e.g. Mirrlees 1971, Saez 2001) Instead we adopt a Computational Approach (CA) that combines microeconometrics, microsimulation and numerical optimization (e.g. Aaberge & Colombino 2006, 2012, 2013, Blundell & Shephard 2012) 54
Model and Data • Microeconometric model of household labour supply • Separate estimation for each country, couples and single • Sampled alternatives, 7 for singles, 49 for couples • Sample include non working, wage employed, self-employed • Retired excluded • Age 18 - 65 • EUROMOD datasets based on EU-SILC 2010 • This presentation is limited to 6 countries • The project will cover most of the countries in Euromod 55
Microeconometric Model max (U(c, l) = V(c, l) + ε) s.t. c = wl +y – T(wl +y) lB U( ) = utility function V( ) = «systematic» utility ε = random variable (extreme value distribution) T( ) = tax-transfer rule c = net income l = labour supply w = wage rate y = exogenous income B = opportunity set
56
Parametric Policies We consider four types: UBI, CBI, IWB and NIT The members of each type are defined by a vector of parameters π.
πUBI = (GUBI, t1,UBI, t2,UBI ) with t1,UBI= t2,UBI πCBI = (GCBI, t1,CBI, t2,CBI) with =t1,CB = 1 πIWB = (GIWB, t1,IWB, t2,IWB ) with t1,IWB < 0
πNIT = (GNIT, t1,NIT, t2,NIT ) G is adjusted according to the household size (square root rule) Basic income is matched with a Flat Tax (e.g. Atkinson 1995) The policies replace the whole tax-transfer system
57
Microeconometric Model V(c, l) is a quadratic form in c and l, with coefficients function of socio-demographic characteristics + some alternative-specific dummies, e.g. for singles:
V 1c 2c 3 (T l) 4 (T l) 5 (T l)c 2
2
[alternative-specific dummies]
58
Microeconometric Model Choice probability (Conditional Logit)
Pi ,k ( )
expVi (ci ,k ( ), li ,k )
expV (c j
i
i,j
( ), li , j )
59
Microeconometric Model Expected maximum utility (McFadden 1978):
Vi *( ) ln
expV (c j
i
i,j
( ), li , j )
60
Microeconometric Model Comparable money-metric utility μi (King 1983):
ln
expV (c ( ) ( ),l ) V *( ) j
R
Rj
R
i
j
i
Decoster & Haan (2015) present a different implementation inspired by Fleurbeay (2011) An alternative (e.g. Aaberge & Colombino 2013) is to ri-evaluate V* with common preference parameters (Deaton & Muellbauer 1980) 61
Social Welfare (Kolm 1976) μi = comparable money-metric utility of household i
1 Efficiency = i i N expk(i ) 1 Inequality = ln i k N k Inequality Aversion parameter 1 Social Welfare = ln k
expk(i ) i N 62
Identifying Optimal Policies π = parameters of the policy
Ui(c(π), l) = utility of household i, given income c(π and, hours of work l Vi(π) = Emaxl,c Ui(c(π), l) = expected maximized utility given policy π μi(π) = comparable money-metric Emax utility W(μ1(π), …, μN(π)) = Social Welfare function π* = argmaxπ W(μ1(π), …, μN(π)) s.t. public budget constraint.
63
Identifying π* with Computational Approach
π* at convergence
Maxπ W(μi(π),…, μN(π))
π
s.t. P.B.C. This is solved by numerical optimization
μi(π)
Vi(π) = maxc,l Ui(c, l) s.t. household’s budget constraint given π This is solved by microsimulating a microeconometric model of household decisions V is turned into μ (King 1983)
64
An example: Italy
Italy Third Best: Optimal IWB, k = 0.05
Italy First Best: Optim al NIT, k = 0.05 Net
Net t2 = 0.47
t2 = 0.35
t 1 = 0.37
t1 = -0.04
G =144
Gross
Gross
65
An example: Italy Italy Second Best: Optimal UBI, k = 0.05
Italy Fourth Best: Optimal CBI, k = 0.05
Net
Net
t 2 = 0.31
G =337
t1 = 1
Gross Gross
66
Optimal CBI, NIT, UBI and IWB, k = 0.05 Belgium G
t1
t2
Hours
Poverty (%)
Winners (%)
%Δ Social Welfare
CBI
804
1.00
0.44
1635
0.0
57
-1.07
NIT
522
0.28
0.72
1635
5.0
61
1.51
UBI
905
0.64
0.64
1645
7.9
57
1.29
IWB
441
-0.02
0.52
1672
9.0
65
0.37
Current
----
----
----
1645
15.0
----
---67
16870 NIT
16860
Belgium
16850 UBI 16840
Efficiency
IWB Current
16830 16820
Iso-social welfare lines
16810 16800
CBI 16790
-805
-800
-795
-790
-785
-780
-775
16780 -770
-Inequality
68
Optimal CBI, NIT, UBI and IWB, k = 0.05 France G
t1
t2
Hours
Poverty (%)
Winners (%)
%Δ Social Welfare
CBI
374
1.00
0.17
1688
18.5
72
1.48
NIT
123
0.36
0.16
1690
18.4
74
1.70
UBI
322
0.26
0.26
1645
7.9
57
0.23
IWB
245
0.26
-0.026
1684
9.0
73
0.06
Current
----
----
----
1645
15
----
---69
10770 NIT 10760 CBI
France
10750
Efficiency
10740
10730 10720 10710 IWB UBI 10700 Current 10690
Iso-social welfare line -110
-109
-108
-107
-106
-105
-104
-103
10680 -102 -101
-Inequality
70
Optimal CBI, NIT, UBI and IWB, k = 0.05 Ireland G
t1
t2
Hours
Poverty (%)
Winners (%)
%Δ Social Welfare
CBI
981
1.00
0.27
1188
26.6
47
-2.81%
NIT
904
0.32
0.89
1191
12.8
61
3.99
UBI
1062
0.57
057
1161
0.0
57
1.48
IWB
494
-0.09
0.31
1274
15.8
48
-0.41
1249
19.6
Current
71
26750
NIT
26700
Ireland
26650
Efficiency
UBI 26600
Current IWB 26550
Iso-social welfare line
CBI
-2375
-2370
-2365
-Inequality
-2360
26500
-2355
26450 -2350
72
Optimal CBI, NIT, UBI and IWB, k = 0.05 Italy G
t1
t2
Hours
Poverty (%)
Winners (%)
%Δ Social Welfare
CBI
337
1.00
0.31
1530
29.2
65
0.53
NIT
303
0.37
0.47
1510
21.3
72
0.93
UBI
196
0.35
0.35
1535
25.8
73
0.62
IWB
144
-0.04
0.35
1539
16.2
73
0.59
Current
----
----
----
1540
26.6
----
---73
4570 IWB 4565
UBI
Italy CBI
4560
Efficiency
4555
4550 NIT
Iso-social welfare line
4545
4540 Current
-1055
-1050
-1045
-1040
-1035
-1030
4535 -1025
-Inequality
74
Optimal CBI, NIT, UBI and IWB, k = 0.05 Luxembourg G
t1
t2
Hours
Poverty (%)
Winners (%)
%Δ Social Welfare
CBI
626
1.00
0.19
1664
20.0
62
-1.01
NIT
605
0.19
0.49
1643
11.0
63
0.10
UBI
1297
0.48
0.48
1642
3.7
51
-0.16
IWB
542
-0.01
0.33
1660
7.5
65
-0.24
1648
10.7
Current
75
7860 Current 7840
NIT
Luxembourg
UBI
7820 IWB
Efficiency
7800
Iso-social welfare line
7780
7760
CBI 7740
-2880
-2870
-2860
-2850
-2840
-2830
7720 -2820
-Inequality
76
Optimal CBI, NIT, UBI and IWB, k = 0.05 United Kingdom G
t1
t2
Hours
Poverty (%)
Winners (%)
%Δ Social Welfare
CBI
641
1.00
0.25
1182
27.3
56
-0.46
NIT
774
0.63
0.64
1157
16.0
76
9.06
UBI
674
0.55
0.55
1175
30.3
74
6.91
IWB
174
-0.03
0.19
1262
23.3
46
-6.60
1196
30.3
Current
77
9050
NIT 9000
United Kingdom
UBI 8950
Efficiency
8900
8850 Current
CBI 8800
8750
Iso-social welfare line
8700 IWB
-1100
-1095
-1090
-1085
-1080
-Inequality
-1075
-1070
-1065
8650 -1060
78
Comments • NIT is best (welfare-wise) • UBI in most cases better than CBI
• CBI may lead to a significant reduction in labour supply and poverty-trap effects • IWB in most cases dominated by NIT and UBI • In Luxembourg the reforms hardly improve upon the current system
79
Comments • Optimal Taxation Theory suggests NIT close to optimal with convex profile • Computationa Approach confirms good performance of NIT • However, in most cases, with concave profile • UBI (= Unconditional Basic Income) could outperform NIT when taking administrative implementation details into account
80
NIT Concave
Convex
Net
Net
G
G Gross
Gross
81
Comments Optimal Taxation Theory
Computational Approach
Previous analyses based on Optimal Taxation suggest IWB might dominate NIT and UBI in many European countries (e.g. Saez 2002)
According to our exercise, IWB dominated by both NIT and UBI
82
Identifying a «general» rule • The correspondence between «primitives» and π*
• S «economies» • θ1, θ2, …, θS = «primitives» (elasticities, productivity etc.) • π1, π2, …, πS = optimal tax-benefit rules
83
Identifying the correspondence between π and θ
θ1 … … … θS
Regression analysis, Clusters, Correspondence analysis, etc.
π1 … … … πS
84
How NIT parameters π depend on «primitives» θ (OLS, very preliminary) G
t1
t2/t1
451.8
0.290
1.910
Inequality aver. (k)
11.8
0.008
-0.009
Productivity (wage)
8.7
-0.008
0.020
P.B.C.
-0.6
0.000
0.000
L.S. Elasticity
-11.8
-0.002
-0.030
Constant
85
References Aaberge, R. and U. Colombino (2006) Designing Optimal Taxes with a Microeconometric Model of Labour Supply, IZA Discussion Paper No. 2468. Aaberge, R. and U. Colombino (2012) Accounting for Family Background when Designing Optimal Income Taxes: A Microeconometric Simulation Analysis, Journal of Population Economics, 25(2), 741761. Aaberge, R. and U. Colombino (2013) Designing Optimal Taxes with a Microeconometric Model of Labour Supply, Scandinavian Journal of Economics, 115 (2), 449–475. Acemoglu, A. and P. Restrepo (2016). "The Race Between Machine and Man: Implications of Technology for Growth, Factor Shares and Employment," NBER Working Papers 22252 Akee, R., Copeland, W., Keeler, G., Angold A. and E. Costello (2010) Parents' Incomes and Children's Outcomes: A Quasi-Experiment Using Transfer Payments from Casino Profits, American Economic Journal: Applied Economics, 2(1), 86-115. 86
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