RSS

Tag Archives: alcohol

#HEJC for 06/05/2013

This month’s meeting will take place Monday 6th May, at 5pm London time. That’ll be 11am in New Orleans and 7pm in Athens. Join the Facebook event here. We’ll also hold an antipodal meeting 12 hours later on Tuesday 7th May, at 5am London time. That’ll be midday in Kuala Lumpur and 1pm in Tokyo. Join the Facebook event here. For more information about the Health Economics Twitter Journal Club and how to take part, click here.

The paper for discussion this month is a working paper published in the Munich Personal RePEc Archive. The authors are Lydia Lawless, Rodolfo Nayga and Andreas DrichoutisThe title of the paper is:

“Time preference and health behaviour: A review”

Following the meeting, a transcript of the discussion can be downloaded here.

Links to the article

Direct: http://mpra.ub.uni-muenchen.de/45382

RePEc: http://ideas.repec.org/p/pra/mprapa/45382.html

Other: tbc

Summary of the paper

Time preferences affect individuals’ consumption decisions. Our understanding of time preferences can inform public policy, particularly in the area of health behaviours. Furthermore, in economic evaluation in health care, assumptions about time preferences play a crucial role in determining the cost-effectiveness of an intervention. The authors carry out a literature review; focussing on papers published post-2002 so as to avoid repeating previous reviews. In this review the authors sought to:

  1. examine the influence of time preferences on health behaviours
  2. explain how the societal time discount rate differs from the private time discount rate
  3. determine how time discount rates affect the decisions of governments in the developing world
  4. assess how time discount rates affect individuals’ decision making in regard to risky behaviours such as smoking, diet and sexual behaviour
  5. discuss the repercussions of time preferences for the prevention of poor health.

The authors identified 3 main strategies that are used to capture time preferences; observed behaviour, experimental settings and the use of time preference proxies. The authors conclude that context plays a key role in determining the nature of time preferences; developing countries may exhibit different trends to developed countries. Furthermore, time preferences from a societal perspective do no necessarily match those of the individual.

Discussion points

  • Do the authors succeed in reviewing all relevant literature?
  • Is the authors’ review strategy sufficient?
  • Does the study successfully address the 5 aims set out in the introduction?
  • How might this study inform future research?
About these ads
 

Tags: , , , , , , , , ,

Is this recession good for your health?

There have been a good number of articles to document the phenomenon of a counter-cyclical relationship between unemployment and health. As unemployment rises, deaths from a number of causes have been found to decline. These include accidents, infant mortality, heart disease, and liver disease (Ruhm, 2000; Dehejia and Lleras-Muney, 2004). That such a relationship is observed may at first seem counterintuitive; the reduction in income must surely damage our health. But, there are a number of reasons why we may see this relationship:

  1. Opportunity cost of time: In economic upturns leisure time decreases and health improving behaviours such as exercise decrease. Thus, in an economic downturn, since our time is less precious we have more time to engage in time-intensive and health-promoting activities. We could even visit the doctor more.
  2. Health as an input to production: The production of goods and services requires healthy people. But this production may be hazardous or stress-inducing. Furthermore, some of the most hazardous sectors, such as construction, are the most affected by economic downturns.
  3. External sources of death: Less time spent commuting means less time on the road and so fewer vehicular accidents. We may also see less drink driving, which is more common in economic upturns.
  4. Income effect: Our consumption of alcohol and tobacco as well as other goods that damage our health may decline.

On the back of this evidence, I asked myself, has this effect been present in the UK during the current Great Recession? Overall, unemployment has risen over the last five years, and the average weekly wage has declined in real terms (thanks to @peterpannier for the graph):

Click for larger image

A proper analysis of the data would be a full paper, something that someone, somewhere, may be in the process of writing – but, for the purposes of a preliminary investigation, let’s just look at the raw data. The 2011 census asked people how they would rate their health and provided them with five possible responses from ‘very good’ through to ‘very bad’. The census also provides us with the number of economically active but unemployed individuals. All this information is aggregated at the level of lower super output area (LSOA); of which there are around 32,000 in the UK each with a population of around 1,500. The following figure shows a plot of the proportion of unemployed individuals (as a proportion of 16-74 year olds) against the proportion reporting ‘bad’ or ‘very bad’ health:

Click for larger image

Clearly, there is a strong upward trend; areas with more unemployed have more people reporting bad health. Does this contradict our initial hypothesis? One of the crucial points about the aforementioned arguments are that they are arguments to explain the relationship between a change in health and a change in economic circumstances. The papers cited above used a fixed effects analysis; an analysis to examine the effects of changes. Thus, the correlations in the figure above may be picking up structural unemployment: we may be seeing the relationship between health and unemployment for those for whom the recession doesn’t affect health behaviour because they don’t experience a change as they are already unemployed. So let’s look instead at the relationship between short-term unemployment and the proportion reporting ‘bad’ or ‘very bad’ health. I defined short term unemployed here as having last been employed in 2011, i.e. a maximum of three months prior to the census. I looked at this in two ways; firstly, by looking at the number of short term unemployed as a proportion of the total number of people between 16 and 74:

Click for larger image

As you can see, there is now a downward trend, albeit not very steep. One issue is that areas with high short-term unemployment may also have high long-term unemployment making it hard to distinguish their effects. Therefore, my second approach was to look at the proportion of short term unemployed as a proportion of the total unemployed:

Click for larger image

Now there is clearly a strong downward trend. At a superficial level, these data seem to preliminarily support the hypothesis that short-term changes to unemployment may improve health. However, we also see that long-term unemployment is related to negative health. This is certainly not unexpected.

It is well evidenced that longer spells of unemployment lead to a reduced probability of finding work. From the macroeconomic point of view, the longer a downturn in the economy lasts, the greater the structural unemployment. This, as the above data suggest, may therefore lead to a reduction in average population health. Reducing unemployment and the duration of employment spells is certainly important but an ambitious policy goal. A better understanding of how socioeconomic deprivation and poor health are related would identify other methods to combat this negative effect on health.

These data may also shine a different light on Keynes’s well quoted line that ‘In the long run we are all dead’.

 

Tags: , , , , , , , , , , , , , , , , , , ,

A minimum price for alcohol

The current UK government is toying with the idea of introducing a minimum price for alcohol in England and Wales of around 45p per unit. However, just this week it was revealed that some senior cabinet members opposed the policy; putting it in jeopardy.

As with any policy there is a burden of evidence. The impact of such a policy should be established as best as possible. Basic economic arguments and the current evidence about alcohol may or may not lead us to expect that the policy would: i) reduce overall consumption (income effect), ii) increase consumption of other drugs (substitution effect), iii) not affect consumption of alcohol among alcoholics (inelastic demand among addicts), and iv) reduce the welfare of the poorest households (tighter budget constraint).

As was discussed in a previous post, based on arguments presented by David Nutt, the primary policy goal should be a reduction in the harm caused by alcohol; not a reduction in the prevalence of alcohol consumption. Of the above effects, presumably only the first is what the government desires; and, since it is a minimum price increase, only those who purchase the cheapest alcohol would see an income effect. The understanding is that alcoholics are the ones who would thusly be affected. But this leads to point iv); poor households who are not problematic drinkers would see an increase to the price of alcohol, while wealthier households who purchase more expensive alcohol (fine wine is a luxury good, cheap cider an inferior good), wouldn’t be affected. Yet there is certainly evidence (e.g. here and here) to suggest that alcohol consumption among the middle classes is problematic.

A precursory glance at the literature reveals the evidence of the effect of a minimum price of alcohol is fairly limited. It does reveal that, in Canada, it was found that a 10% increase in the minimum price of alcohol led to both a reduction in alcohol consumption and a 31.7% reduction in alcohol-attributable deaths. Epidemiological models set in the UK estimate the same effect.

The purpose of this policy does seem to be prevention of alcohol-related disease. But changing the minimum price of alcohol doesn’t address many of the issues surrounding the causes and effects of alcohol addiction; in particular, the effect of socioeconomic status. Higher socioeconomic status individuals are at least as likely to consume risky amounts of alcohol but appear to be less at risk of the adverse consequences. Indeed, one way of abrogating these effects would be to reduce consumption among the lower status individuals, but this would certainly be inequitable. It is widely accepted that there is a relationship between low socioeconomic status and alcohol addiction due to adverse social factors and poor life circumstances with the arrow of causality pointing in both directions. Perhaps addressing socioeconomic problems could be a more effective solution.

 

Tags: , , , , , , , , , , , , , , , , , ,

 
Follow

Get every new post delivered to your Inbox.

Join 522 other followers

%d bloggers like this: