Opportunity Cost

The real or opportunity cost 


is the 


alternative forgone.


National economic management is formulated to achieve ‘efficiency’ – that is, producing the most satisfying mix of goods and services with the most efficient combination of resources with the least waste and with resources as fully employed as possible and with minimum negative environmental costs.

A tall order by anyone’s measure!

Like anyone knows we ‘can’t have it all’, there are trade-offs with any choice we make, and we also know that you can’t ‘please all the people, all the time’.

The real or opportunity cost of any choice is the value of the alternative forgone.

It’s true on a societal level and a personal one.

We face limitations, both with our time and money.

How often do we hear or say, “there’s just not enough time in the day?”

Choosing to study for several years means forgoing possible full-time income in that time. Watching TV when we could be exercising, is also a choice and has its costs!


Budget constraints force us to make choices about how we spend the limited income we have at our disposal. After we have paid taxes, we allocate our income and either spend it or save it.

If we can save, we can then choose what to do with the savings.

Constraints also exist for the economy as a whole and for those whose responsibility it is to manage it.

One of my favourite lessons in a senior Economics class ( once they knew enough ) was to go in with just a piece of chalk   ( it was a while ago! ) and start with a single concept, in the middle of the board and have the students work out and marvel at all the interconnections, outcomes and trade-offs until the board was full.

In other words, complete the puzzle of interrelated and moving parts that are the ‘economy’.

The exercise was a way for them to reinforce learned concepts and improve their analytical skills, but it also challenged them to think more broadly and ‘outside the square’. It cautioned them never to become one of those dinner party guests that declares with the certainty that only ignorance allows, ‘the government should just….’

It’s not an excuse for poor policy, just a recognition that it’s complicated!

Opportunity cost, the alternative foregone is never more apparent than when looking at the competing demands on the budget.  There are also the unintended trade-offs that come with policy decisions.

An example is the imposition of lockout laws in inner Sydney’s entertainment district. Not many would argue against the social benefit of a policy to curb both the tragic human and needless financial costs of alcohol-fueled violence.

However, the trade-off has been the closure of a large number of venues due to lower demand – resulting in higher unemployment and therefore pressure on the welfare budget, loss of rental income for venue owners, less work for taxi and uber drivers, and kebab shops!

The decision to trade off the welfare of a small group of business owners against the well-being of the public generally is a subjective decision and therefore in the realm of ‘normative economics’.

(Interestingly, these lockout laws have been modified now in NSW in recognition of the inequitable hardship placed on local business and the tourism industry)

Positive economics is based on facts while normative relies on value judgements and opinions; it’s what we consider should be done.

Positive economics is objective, while normative is subjective.

Likewise, an individual’s evaluation

of the allocation of their funds is

also subjective and

will depend on their 





Do you remember when your parent used to say “because I said so!”? You knew there was more to the story, but you knew they just didn’t have the time or energy or will to explain why!

Take the now-defunct carbon tax as an example. Observing the debate it seemed to me that politicians typically lack sufficient skills to convince any kid they need to eat their greens, let alone the voting public that it needs to pay more for the things they buy!

Pollution is a negative externality; an undesirable by-product of another productive activity and is an example of market failure. It’s widely understood that the factors of production involved in producing an item determine its cost. What most people are not conscious of is the hidden costs, those that aren’t obvious, the costs that we all bear whether we buy the product or not. The most obvious example being pollution.

Price is a rationing device and the only way to make consumers bear the actual cost of a product, and perhaps change their consumption patterns, is to internalize or price the hidden costs, in other words, make them pay for it.

For those who have teenage children, how many times have you caught yourself saying things like, “wait till you’re paying the bills, then you’ll switch off the lights”!


That’s because they don’t yet bear the cost, their usage of your electricity is not priced; it’s not internalized.

But at the same time, I do feel sorry for policymakers because there are no easy answers. Opportunity cost, the alternative foregone is never more apparent than when looking at the competing claims on the budget. Every budget decision means that some other wish has to be crossed off the list or at best trimmed back. There is also the unintended trade-offs that come with policy decisions.

Ever been to a dinner party or BBQ where someone pronounces with the enormous certainty that ignorance allows, “the government should just….”?

Similarly, those that claim housing affordability will be magically fixed by changing the tax rules around negative gearing don’t seem to have any inkling (or alternative suggestions for that matter) about how the public sector would provide all that rental accommodation in the absence of investor activity. They have even less appreciation of the private vs public efficiency trade-off or the likely effect on rent of an investor exodus from the housing market. One politician recently responded to the suggestion by saying “oh, it’s complicated”. Really?! They should be able to do better than that! They could:

Explain that tax breaks for investors encourage the supply of housing in an already constrained market more cost-effectively than the public sector could ever do and that it encourages a rapidly aging population to invest for the future and reduce the burden on the future public purse.

Explain that housing starts are a leading indicator of economic activity and therefore, jobs and the multiplier effect of house construction is huge. Building new properties has a ripple effect on consumption that is hard to replicate.

Explain that the new driver of growth and therefore jobs are population growth and the houses and infrastructure and services they will demand, all 32,000,000 of us by 2033. That’s less than 13 years from now! Incentivizing the simple ‘changing of hands’ in the property investment market may be a lot less socially beneficial than encouraging new construction.

But then things are never that simple….




The Study of Scarcity

“…you can’t always get what you want.”


The Rolling Stones may have said it in the most entertaining way in the late ’60s, but economists have been saying it for centuries,

Economics is the science, or study, of choice.

The pillars of modern mainstream economics include the concepts of scarcity, opportunity cost, self-interest, specialisation, market dynamics and market failure – all of which are relevant to an understanding of the reasons to invest and why property provides a relatively safe and predictable way to do so.

The fundamental problem we all face is scarcity, and it applies to us collectively and as individuals.

While Australia is a prosperous, naturally endowed nation, our resources are finite. To be considered useful, resources need to be known and accessible. Only then can they be regarded as one of the four factors of production – land, labour, capital and enterprise.

For example, Australia has an abundance of land, but most of it is arid desert.

The cost of development and infrastructure provision to make a desert inhabitable would be prohibitive.




Fixer Upper

If you have ever watched any of the popular ‘fixer-upper shows’ coming out of the US midwest then like me, you are probably amazed (even in AUD adjusted terms) at what they get for their money!

But the explanation is simple – while our land areas are not dissimilar, theirs is very different topography, and it allows them to build right across the country – land is therefore not a scarce commodity.

Not so in Australia – the vast majority of us are confined to the edges (approximately 67%) and therefore, developed, useable, infrastructure connected and supported land is scarce and as a result, far more valuable.

It’s textbook supply and demand theory in practice.


Typically, your income is the resource you have at your disposal to satisfy your wants and needs.

Income is the return to the factors of production. There are four types of factor income:

Most of us will earn a wage or salary in return for labour,

but we also have the opportunity to

earn income in other ways too.


Once you have earned your income, there are only three things you can do with it; you can spend it, you can save it and, pay taxes.

There are no other alternatives!

Most people have the tax taken out automatically before they get to make any choices about consuming or saving. What you have left is disposable income.

Disposable Income = Gross Income – Taxation

Our predicament compels us to make choices. As rational human beings, it’s assumed that we all try to allocate our scarce resources to our competing needs and wants to maximise our satisfaction.

We are all economists!

In the next section, we will examine how we make those choices.

How do we as a nation and as individuals

increase our standard of living

by reducing scarcity and

enhancing our choices in life?