In the past three decades, the number of people who are on disability benefit has skyrocketed.
There is no compelling evidence that the incidence of disabling health conditions among the working age population is rising. Autor (2006) found that disability rolls in the USA expanded because:
- congressional reforms to disability screening in 1984 that enabled workers with low mortality disorders such as back pain, arthritis and mental illness to more readily qualify for benefits;
- a rise in the after-tax income replacement rate, which strengthened the incentives for lower-skilled workers to seek benefits; (3) and
- a rapid increase in female labour force participation that expanded the pool of insured workers.
Autor found that the aging of the baby boom generation has contributed little to the growth of disability benefit numbers to date.
David Autor and Mark Duggan (2003) found that low-skills and a poor education is predictor of disability: in the USA in 2004, nearly one in five male high school dropouts between ages 55 and 64 were in the disability program; that was more than double that of high school graduates of the same age and more than five times higher than the 3.7 % of college graduates of that age who collect disability. Unemployment is another driver of disability.
The proportion of working-age people receiving a Sickness Benefit, an Invalid’s Benefit or Accident Compensation weekly compensation in New Zealand rose from around 1% in the 1970s to 5% in June 2002.
Figure 1 The Number of People Receiving Benefit as a Primary Recipient, All Age Groups, 1975–2005
Source: DSW Annual Reports or Statistical Information Reports and MSD SWIFFT data from Dwyer and McLeod (2006).
Most other OECD countries also experienced a rise in the proportion of the working-age population claiming incapacity benefits over this period. By the late 1990s and early 2000s, it was common for around 4–6.5% of the working-age population to receive such benefits. Some European countries have up to 10% of their working age population on disability or sickness benefit!
When the UK undertook reassessments of those on its disability and sickness benefit, fewer than one in 10 people assessed for the new sickness benefit has been deemed too ill to carry out any work.
More than a third of the 1.3million people who applied for Employment and Support Allowance were found to be fully capable of working; a similar proportion abandoned their claims while they were still being processed. Moral hazard seems to be the main explanation of the rise in disability roles.
Before 15 July 1980, a victim of a workplace accident in the state of Kentucky received a payment proportional to his or her wage with an upper limit of $131 per week. On 15 July 1980, the limit was raised to $217 per week. This increase made a considerable difference to the best-paid workers: their periods of convalescence grew 20% longer (Cahuc and Zylberberg 2006).
Utopia, you are standing in it! 
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