It takes a one-two punch to make insurance fair

AI Doesn’t Do Solidarity

It takes a one-two punch to make insurance fair

I’ve previously argued that AI can vanquish bias in insurance, and so it can. But while machine learning can help ensure equality, it cannot ensure equity. It might even make it worse.

Equality ≠ Equity

‘Equality’ and ‘equity’ are often thought of as synonyms, but they are distinct. While both promote fairness, equality is about treating everyone the same regardless of their circumstance, while equity is about treating people differently out of regard for their circumstance.

Equality and equity often pull in opposing directions — think of the tension between ‘equal opportunity’ and ‘affirmative action’ for example — and reasonable people may disagree on the optimal mix of the two. What follows is a framework for insurance that, I hope, can be agreeable to all such reasonable people.


The gist of my first, equality-centric claim, was that insurers should strive for MLK’s dream of judging everyone by the content of their character, not the color of their skin. I pointed out that as long as the industry relies on few data, insurers have little choice but to group people based on surface similarities, and that’s a problem. Crude groupings create inequality (charging unequal amounts per unit of risk), moral hazard (subsidizing the careless at the expense of the careful), and proxy discrimination (as superficial data often correlate with race, gender, or religion).

Under the weight of big data and machine learning, I argued, coarse groupings can be relentlessly shrunk, until — in some ideal future — each person is a ‘group of one,’ to be judged by the content of their character; and the fairness of this black-box can be judged by whether or not it produces a uniform loss ratio (ULR) across protected classes. (The argument is explained more fully in the 20 minute presentation to regulators, below.)

Presentation to regulators on how AI can vanquish bias, and ULR can ensure it

Mission accomplished? Well… up to a point. A future where each person contributes to the insurance pool in direct proportion to the risk they represent — rather than the risk represented by a large group of superficially similar people — sounds like a great terminus, but it may not be enough. In fact, without an additional layer of equity, it may not even be a step in the right direction.


Insurance, ideally conceived, is about a community of people pooling resources to help their weakest members in their hour of need. It’s a social good.

But ‘perfect’ pricing can run counter to the social good.

Consider, for example, a baby born with a congenital heart defect. The ‘risk they represent’ for health insurers would be so high as to make them uninsurable. Not a social good.

The same hardship would pop up across insurance lines. Take people raised in historically disadvantaged communities. By dint of birth, a home that is poorly built, poorly maintained, and in a high-crime neighborhood, may be all they can afford — but they may not be able to afford the home insurance premiums commensurate with these compounding risk factors.

I subscribe to the dictum that ‘there is no such thing as a bad risk, only a mis-priced risk,’ but what to do when precise pricing puts insurance beyond the reach of those who need it most?

The fuzzy pricing of yesteryear took the edge off this problem. When averages are used in lieu of precision underwriting, good risks pay too much, bad risks pay too little, and would-be-uninsurables slip through undetected.

If equality is the unintended victim of paltry data, equity is its unintended beneficiary.

But hoping insurers will forever lack the ability to detect outlying risks is a flimsy basis for solidarity. If inclusion is a mere artefact of shoddy data, it will be squeezed out by big data.

The better way to engineer solidarity is to engineer solidarity. It’s time to formalize an equitable policy in insurance, and this is where governments need to step in.

Golden Rule

Before diving into my proposal, a brief philosophical interlude. What constitutes ‘fair’ has been debated since the dawn of time, and involves tradeoffs between values — with liberty and equity often vying for supremacy. Anyone presuming to advocate for a particular policy, therefore, ought to take note of these tradeoffs, and be transparent about their position along this continuum.

To wit: MLK formulated what I see as true north for equality, and John Rawls formulated what I see as the equivalent for equity.

Imagine, says Rawls, if you didn’t know who you would be — what state of health, what state of wealth, what race, what gender etc. — and now formulate what you think are fair rules for society. Behind this veil of ignorance, to use his phrase, formulate a social contract you’ll regard as fair no matter what health, wealth, race or gender you discover when you remove the veil. It’s a thought experiment that’s impossible to implement perfectly — we cannot unknow who we are — but it focuses the mind in ways I find helpful.

MLK challenged us to be color blind when looking at the other, Rawls challenged us to be blind to our own station in life. Both are embodiments of the Golden Rule, a version of which is found in very ethical tradition, and which Hillel the Elder formulated as “what is hateful to you, do not do to the other”.

With this framework in mind, what need we do to ensure our industry is inclusive and fair?


I think it is the role of society at large — through representative government, rather than insurance companies — to ensure everyone has access to essentials such as healthcare, education, housing, and safe streets. Indeed, redistributive tax policies allow many countries to finance broad social safety nets that act as a form of insurance for those who need it most: universal healthcare finances treatments for congenital heart defects, community policing provides for safe streets, and social security benefits cover many other basic needs.

It is preferable to tackle equity at a societal level rather than at an industry level; and the more comprehensive a country’s social safety net, the less need there is to regulate insurance-specific interventions.

And, to be clear, where the welfare state comes up short, insurance regulation — not self regulation — will be needed.

Here’s why.

Any insurance company that implements its own redistributive policies will be adversely selected into bankruptcy. Charging better risks extra to subsidize policies of the less fortunate, will trigger an outflow of good risks and an influx of loss-making ones.

No. If our industry is going to prioritize equity, it has to take the form of a non-discretionary cost of doing business.

In many jurisdictions, premium taxes (usually 2–3% of premiums) fund a pool for rescuing faltering insurers. I believe it is time to levy a similar tax to subsidize insurance for low-income families.

The level of this Solidarity Tax & Rebate (STR), as I call it, and how its proceeds are distributed, is something that may vary from one jurisdiction to the next. The broad architecture, though, could be common across the industry:

  1. Lines: Regulators will designate certain insurance lines — home, disability, and life for example — as basic goods everyone should be able to afford.
  2. People: Regulators will designate criteria for determining which people are in need of help affording them. In the US, for example, eligibility for Medicaid — or some other entitlement program– may be a suitable proxy. Over time more involved criteria and sliding scales may make sense.
  3. Tax & Rebate: When insurers submit rates to regulators they should include a column for the STR. In most cases this will mean adding the Solidarity Tax (say 3%) to the base rate. But when writing designated lines (per 1 above) for designated people (per 2 above) they may submit for regulatory approval a lower Solidarity Tax, no Solidarity Tax, or a Solidarity Rebate. In extreme cases — such as the baby born with a congenital heart defect — I’d hope that the Solidarity Rebate could approach 100%. (Rates aren’t submitted to regulators in many jurisdictions outside the US, where alternative oversight mechanisms — or comprehensive criteria and sliding scales — can substitute for this.)

Some insurers — like those targeting high net worth individuals — will be net contributors to the STR pool. Others — like those targeting low-income communities — may be net beneficiaries. This is as it should be, and will encourage insurers to offer essential lines at affordable prices to the most needy. In any event, regulators should endeavor to balance the STR inflows and outflows each year.

The Land of the Blind

Taken together, ULR and STR provide a powerful one-two punch. The ULR ensures there is no discrimination in pricing or claims, while the STR augments this color-blindness with a layer of solidarity and compassion. (Technical note: STR is a deviation from pure equality, which is why the ULR test needs to be run net of STR.)

Given that levels of the Solidarity Tax, and criteria for the Solidarity Rebate, are left to the regulators, each jurisdiction can localize the STR framework in light of their preexisting safety-net and position along the liberty-equity continuum.

The upshot is a system that allows insurers and regulators to balance equality and equity. It enables us to harness big data and artificial intelligence to deliver hitherto unknown levels of equality in insurance, while harnessing human solidarity to deliver hitherto unknown levels of equity in the availability and affordability of insurance.

As MLK and John Rawls taught us, when we’re blind to the surface characteristics of others, and blind to our own particulars, we begin to see beyond our biases. I hope ULR and STR are steps in this direction, in the vein of Tertullian’s vision from two thousand years ago:

“Two kinds of blindness are easily combined so that those who do not see really appear to see what is not!”

CEO & Co-founder of Lemonade

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