Some economics of zero hours contracts – part 1: concepts, definitions and initial puzzles

Unions say New Zealand employers are following trends overseas and adopting zero hour contracts: workers have to be available for work, but have no hours guaranteed. Unite Union national director Mike Treen said:

McDonald’s, KFC, Pizza Hut, Starbucks, Burger King, Wendy’s – all of the contracts have no minimum hours, and so people can be – and are – rostered anywhere from three to 40 hours a week, or sometimes 60 hours a week, and it depends a lot on how you get on with your manager.

No official figures are available on the number of people on zero hour contracts in New Zealand, but they are are available in the UK in the chart below. About 250,000 workers in the UK work on zero hours contracts.

These workers agree not to work for anyone else, but are not promised regular work at all with their new employer.

The question that must always be asked is why do people who are deemed competent to vote and drive cars sign zero hours contract? What is in it for them? David Friedman asked this question about the economics of restraint of trade agreements for employees:

…the employer who insists on an employee signing a non- competition agreement will find that he must pay, in additional wages or other terms of employment, the cost that the agreement imposes upon the employee, as measured by the employee and revealed in his actions.

It follows that the employer will insist on such an agreement only if he believes that its value to him is greater than its cost to the employee…

The contract is designed, after all, with the objective of getting the other party to sign it.

If I am designing the contract and offering it to many other parties, that may put me in a position to commit myself to insisting on terms that give me a large fraction of the benefit that the contract produces.

But it is still in my interest to maximize the size of that net benefit-which I do by only insisting on terms that are worth at least as much to me as they cost the other party.

The inherent inequality of bargaining power between employers and workers and the reserve army of the unemployed must not be all that they are cracked up to be these days if low paid workers have to sign legally enforceable restraint of trade agreements.

Obviously, the few members of the reserve army of the unemployed lucky enough to have a low pay, insecure job that offers no regular hours today have so many other job options that their employers must get them to agree not to quit and job-hop at will. Jobs must be readily available  to low paid workers for otherwise why do employers insist on this restraint of trade in employment agreements.

Why do workers sign these contracts, which can include a promise of exclusive services – not working for other employers? Several subsequent blog posts will attempt to answer this question

The inherent inequality of bargaining power between employers and workers doesn’t work too well here because  the worker is accepting this job as compared to these other options , which may include employment in an existing job.

Once a worker is on-the-job and has accumulated job specific human capital, issues of post-contractual opportunism come up on both sides.

An important function of the employment contract is to prevent attempts to renegotiate terms and conditions once one side of the other has committed to the relationship and will find it costly to go elsewhere.

Zero hours contracts are negotiated upfront, which makes them unappealing to anyone already has a job, unless the terms and conditions of a zero hour contract, including the wages paid are much more appealing than officious observers make out.

Richard Epstein made this point about the general operation of the labour market, which is of relevance to our search to the answers to the questions posed by this blog post:

Labour markets are not characterized by tricky externalities. They do not pollute streams or require the creation of public goods. They are not characterized by genuine breakdowns in information, as workers are in a position to observe the conditions of their employment on a day-to-day basis.

Left to their own devices, without explicit support from union activities, they will be highly competitive, and thus work hard to allocate scarce human capital to its most productive use.

Workers have the option to quit for higher wages, and employers can always seek out low cost techniques to reduce their labour costs.

Any short-term dislocation for firms or individuals is more than offset by the overall increase in the system productivity, spurred in part by clear signals that should increase investments in human capital.

Zero hours contracts are a new labour market phenomena . That is no reason to automatically default to monopoly explanations for their emergence, including their emergence in a highly competitive industries and highly competitive labour markets where  employees change jobs regularly.

As Coase said in the context of industrial organisation as a whole and novel business practices in particular:

One important result of this preoccupation with the monopoly problem is that if an economist finds something—a business practice of one sort or other—that he does not understand, he looks for a monopoly explanation. And as in this field we are very ignorant, the number of ununderstandable practices tends to be rather large, and the reliance on a monopoly explanation, frequent.

The next blog post arises out of my first exposure to the labour economics of working arrangements. Specifically, how the fixed costs of employment and the fixed cost of going to work  both lead to minimum hours constraints in most employment contracts.

Most of what I know about the  labour, personnel and organisational economics of working arrangements  was about explaining  why employers would expect an employee to work as a minimum number of hours if they were to employ them at all. Always good to start with explanations as to why zero hours should not exist, but they clearly do.

Subsequent blog posts will discuss zero hours contracts in the context of the team production and organisational architecture; and zero hours contracts, equalising differentials and job sorting.

Intergenerational mobility in 1 chart

https://twitter.com/conradhackett/status/534642171035394048

Women graduates increasingly put their partner’s career first after they graduate | Daily Mail Online

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Women are increasingly putting their husband’s career before their own, a controversial new study of Harvard Business School graduates has found.

It canvassed over 25,000 male and female students, and found 40 percent of Gen X and boomer women said their spouses’ careers took priority over theirs.

The researchers also said only about 20 percent of them had planned on their careers taking a back seat when they graduated.

This gender gap  found by Robin Ely, Colleen Ammerman and Pamela Stone can be better explained by the marriage market combined with assortative mating.

1. Harvard business graduates are likely to marry each other and form power couples.

2. There tends to be an age gap between men and women in long-term relationships and marriages of say two years.

This two year age gap means that the husband as two additional years of work experience and career advancement. This is highly likely to translate into higher pay and more immediate promotional prospects.

Maximising household income would imply that the member of the household with a higher income, and greater immediate promotional prospects stay in the workforce.

It is entirely possible that women to anticipate this situation both in their subject choices and career ambitions.

Claudia Goldin found that the wage gap between male and female Harvard graduates disappears in the presence of one confounding factor.

That confounding factor is obvious: the male in the relationship earns less. When this is so, Goldin found that the female in the relationship earns pretty much as do similar male Harvard graduates, except for the fact that they work less hours per week:

We identify three proximate factors that can explain the large and rising gender gap in earnings: a modest male advantage in training prior to MBA graduation combined with rising labour market returns to such training with post-MBA experience; gender differences in career interruptions combined with large earnings losses associated with any career interruption (of six or more months); and growing gender differences in weekly hours worked with years since MBA.

Differential changes by sex in labour market activity in the period surrounding a first birth play a key role in this process. The presence of children is associated with less accumulated job experience, more career interruptions, shorter work hours, and substantial earnings declines for female but not for male MBAs.

The one exception is that an adverse impact of children on employment and earnings is not found for female MBAs with lower-earning husbands.

This sociological evidence reported in the Daily Mail is entirely consistent with the choice hypothesis and equalising differentials as the explanation for the gender wage gap. As Solomon Polachek explains:

At least in the past, getting married and having children meant one thing for men and another thing for women. Because women typically bear the brunt of child-rearing, married men with children work more over their lives than married women.

This division of labour is exacerbated by the extent to which married women are, on average, younger and less educated than their husbands.

This pattern of earnings behaviour and human capital and career investment will persist  until women start pairing off with men who are the same age or younger than them.

via Women graduates increasingly put their partner’s career first after they graduate | Daily Mail Online.

Two waiters serve two steel workers lunch on a girder above New York City, 1930

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Richard Posner on behavioural economics and its real-world applications

 

Judge calls for tourists to sit driving test – National – NZ Herald News

Speaking through an interpreter, Judge Phillips told Sun his driving was “nothing short of atrocious”.

“You were all over the road for no reason, you were drifting around corners, cutting corners and crossing the centre line.

“It’s a classic case of why people need to have examinations done before taking control of powerful rental cars on New Zealand roads.”

I don’t think a driver’s test would fix this obviously irresponsible driver of his lack of regard for the safety of others. He does not have a skill gap as a driver. He is just plain irresponsible.

via Judge calls for tourists to sit driving test – National – NZ Herald News.

The impact of the burglar resistant locks and windows on burglary rates

The Dutch government mandated the use of burglar-resistant locks and window and door frames in all new residential construction as of January 1, 1999. The regulation has now affected close to a million homes. The security was built-in and did not require any change in behaviour.

Figure 1:. Victimisation of burglary by year of construction of the home, the Netherlands

When comparing homes built just before and just after the change in the regulation, Vollaard and Van Ours (2011) found that homes with the built-in security to have a 26% lower rate of burglary.

HT: voxeu.org/reducing-invitation-crime

Human Capital, Development, and Growth | Lars Peter Hansen, Edward Glaeser, Claudia Goldin and Robert Lucas

What if We’re Looking at Inequality the Wrong Way? – NYTimes.com

Fig. 5

 

via What if We’re Looking at Inequality the Wrong Way? – NYTimes.com.

Impact of the Work of Gary S. Becker | James Heckman

The labour economics of Woody Allen

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Milton Friedman on bargaining power in the labour market

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Why schools can’t teach character – Toby Young

…character traits are inherited, not taught.

I’m not talking about moral qualities, such as honesty, compassion and altruism. It may be that these can be cultivated.

I mean performance-enhancing virtues, like stick-to-it-ness and the ability to bounce back from defeat, what exponents of character education call ‘grit’.

There’s a growing body of evidence that these traits are largely hereditable, that is, encoded in our DNA. If you exhibit any of these qualities, it’s overwhelmingly likely that your parents did, too.

And insofar as a child’s upbringing has any impact on the emergence of these qualities, it’s the peers they associate with during adolescence that matter, not their teachers.

via spectator.co.uk/toby-young-status-anxiety

Have @NZGreens accidentally published a chart showing substantial and pretty continuous real wages growth in recent decades?

https://twitter.com/scythicus/status/532301512169365504

Here’s what’s not sustainable: organic farming » AEI

Organic farming might work well for certain local environments on a small scale, but its farms produce far less food per unit of land and water than conventional ones.

The low yields of organic agriculture—typically 20%-50% less than conventional agriculture—impose various stresses on farmland and especially on water consumption.

A British meta-analysis published in the Journal of Environmental Management (2012) found that “ammonia emissions, nitrogen leaching and nitrous oxide emissions per product unit were higher from organic systems” than conventional farming systems, as were “land use, eutrophication potential and acidification potential per product unit.”

via Here’s what’s not sustainable: organic farming » AEI.

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