Inequality: What We Earn vs. What We Consume

Is inequality better measured by what we earn or what we spend? The difference is surprising. [Credit: Politic.org]

Is inequal­i­ty bet­ter mea­sured by what we earn or what we spend? The dif­fer­ence is sur­pris­ing. [Cred­it: Politic.org]

Is your stan­dard of liv­ing bet­ter mea­sured by what you earn or by what you buy?

The ques­tion may seem an odd one, but it is crit­i­cal to under­stand­ing the prob­lem of ris­ing inequality.

Most of what’s been writ­ten on the sub­ject focus­es on widen­ing income dis­par­i­ties.  Thomas Piketty’s cel­e­brat­ed work, Cap­i­tal in the Twen­ty-First Cen­tu­ry, relies on a trove of income tax data from the US and oth­er pros­per­ous coun­tries to argue that income dis­par­i­ties are ris­ing through­out the devel­oped world and reach­ing lev­els not seen since the ear­ly twen­ti­eth century.

In an ear­li­er post, I dis­cussed sev­er­al crit­i­cisms of the study, includ­ing Piket­ty’s fail­ure to take into account the effect of trans­fer pro­grams on house­hold income.  It is not valid to com­pare the income of an impov­er­ished fam­i­ly in the 1920s with a sim­i­lar fam­i­ly today with­out count­ing the val­ue of cash wel­fare ben­e­fits, food stamps, Med­ic­aid, hous­ing assis­tance, help with pay­ing util­i­ty bills and a range of oth­er ben­e­fits that were unavail­able to peo­ple in pre­vi­ous gen­er­a­tions.  These ben­e­fits are con­sid­er­able.  Cit­ing a Con­gres­sion­al Bud­get Office study, I not­ed that such fam­i­lies receive an aver­age of $3 in ben­e­fits for every $1 they earn.  By ignor­ing those ben­e­fits, Piketty’s analy­sis may over­state income inequality.

A recent col­lec­tion of essays pub­lished by the Amer­i­can Enter­prise Insti­tute argues that income isn’t the best mea­sure of inequal­i­ty at all.  We should gauge inequal­i­ty, the authors say, not by the wages and ben­e­fits house­holds receive but by the goods and ser­vices they consume.

Con­sump­tion is a bet­ter mea­sure of well-being than income.  What we buy and con­sume with our income direct­ly adds to our util­i­ty and hap­pi­ness, and also has a direct impact on our stan­dard of liv­ing [p.35].

To mea­sure con­sump­tion, Kevin A. Has­sett and Aparna Math­ur, whose essay appears in the AEI vol­ume, use data from the Bureau of Labor Sta­tis­tics (BLS) and the Ener­gy Depart­ment.  The BLS Con­sumer Expen­di­ture Sur­vey mea­sures what house­holds spend and what they spend it on.  The prob­lem of inequal­i­ty looks very dif­fer­ent when exam­ined in this way.  Dis­par­i­ties between rich and poor appear less extreme, as the table below illustrates.

Dis­par­i­ty Ratios: Income Dis­par­i­ties vs. Con­sump­tion Disparities
1984 2010
Con­sump­tion Dis­par­i­ty Ratio (BLS) 3.7 4.4
Income Dis­par­i­ty Ratio (Cen­sus Bureau) 11.0 15.4

In 1984, for exam­ple, house­holds in the top quin­tile account­ed for 37 per­cent of total expen­di­tures while those in the bot­tom quin­tile account­ed for 10 per­cent.  That is a ratio of 3.7 to 1.  By 2010, that ratio had increased to 4.4  to 1 [p. 36].  That still marks an increase in inequal­i­ty, but one that is much less pro­nounced and grow­ing half as quick­ly as dis­par­i­ties in income, as the table shows [p. 37].

Has­sett and Math­ur go fur­ther, not­ing that the BLS con­sump­tion data don’t con­sid­er durable goods owned by house­holds.  That infor­ma­tion is cap­tured in the Ener­gy Department’s Res­i­den­tial Ener­gy Con­sump­tion Sur­vey.  Com­par­ing data from the 2001 and 2009 sur­veys, the authors found sub­stan­tial increas­es in the per­cent­age of poor house­holds (defined as those with incomes of less than $20,000 in 2009 dol­lars) that owned com­put­ers, dish­wash­ers, air con­di­tion­ers, microwaves, cell­phones and sim­i­lar devices.  [p. 36]

Liv­ing stan­dards are thus improv­ing for house­holds at the bot­tom, the authors argue, though they are uncer­tain about the rea­sons for that improvement.

Whether the expla­na­tion for improve­ment in liv­ing stan­dards lies in redis­tri­b­u­tion poli­cies and the growth of the safe­ty net, or tech­no­log­i­cal improve­ments that allowed prices of elec­tron­ics and oth­er durable goods to drop, or real improve­ments in pro­duc­tiv­i­ty and wages, the bot­tom line is: peo­ple are bet­ter off today than they were twen­ty or thir­ty years ago.  House­holds are con­sum­ing more and the typ­i­cal low income house­hold pos­sess­es more appli­ances and gad­gets that have tra­di­tion­al­ly been con­sid­ered the pre­serve of the rich than at any time in his­to­ry. [p. 38]

This diverges sharply from the pre­vail­ing income inequal­i­ty nar­ra­tive in which the rich are said to have enjoyed vast improve­ments in their liv­ing stan­dards, while the rest have made lit­tle progress, strug­gled to tread water, or lagged far­ther behind.  Data on house­hold con­sump­tion of durable and non­durable goods presents a much less drea­ry pic­ture, show­ing that liv­ing con­di­tions have got­ten bet­ter in recent decades even for the poor­est fam­i­lies.  That this improve­ment has occurred despite stag­nant wages sug­gests that income dis­par­i­ties may indeed over­state the eco­nom­ic dis­tance between rich and poor.

No sta­tis­tic mea­sures this dis­tance com­plete­ly or with­out dis­tor­tion.  There is val­ue to tak­ing con­sump­tion, as well as income, into account.  How­ev­er mea­sured, the gap per­sists, is grow­ing larg­er, and seems imper­vi­ous to gov­ern­ment inter­ven­tion in devel­oped coun­tries on both sides of the Atlantic.

While pub­lic assis­tance pro­grams almost cer­tain­ly have damp­ened inequal­i­ty by pro­vid­ing mate­r­i­al ben­e­fits to low-income house­holds, in anoth­er sense they have done lit­tle to improve qual­i­ty of life.  Smart­phones, dish­wash­ers and oth­er gad­gets can­not alle­vi­ate the psy­chic pover­ty that char­ac­ter­izes the poor­est fam­i­lies.  It is a world in which videogame con­soles and flat screen TVs are far more com­mon­ly found in the home than fathers and where an esti­mat­ed one in six African Amer­i­can males have been incarcerated.

This real­i­ty defies quan­tifi­ca­tion, as does the yawn­ing social and cul­tur­al gap between the poor­est fam­i­lies and the elites who run gov­ern­ments, uni­ver­si­ties, Wall Street and the enter­tain­ment industry.

That cul­tur­al chasm may help explain why those elites seem at a loss to explain and under­stand, much less to effec­tive­ly address, the inequal­i­ty problem.