Welcome to Finance and Fury
Last week – The lead up of markets in relation to complexity theory – phase transitions and feedback loops in markets
https://financeandfury.com.au/how-to-analyse-share-markets-by-treating-them-as-a-complex-system/
Today – look at the question – How do we know that we are in for a collapse – or better – what are the early warning signs in of a change in feedback loops triggering a phase transition a complex system
- There are signals – complexity can pick up on but equilibrium can’t – Uber listing on the market with $1.5bn loss – signal
- Today’s episode is a conceptual framework expanding on the previous episode – particularly focus on market fragility and what signals point to it increasing
- The last episode talked about how after a while the same positive feedback loop can create an increased instability in financial markets – this can occur between public and private investors – but after enough of the same feedback – exposes markets to the risk of a systemic risk escalation.
- But what sort of events act as generic early warning signals for chaos? – i.e. phase transition in the markets
To start –
how is the probability of critical transformations assessed? What acts as early warning signals?
- Preface this – nobody can ever predict the exact point at which the system transforms – going through a phase transition of stable to collapse – financial markets are stochastic system – having a random probability distribution or pattern that may be analysed statistically but may not be predicted precisely
- Events that push the market out of equilibrium happen randomly – at any time – but the probability of one event triggering a collapse is low if the markets around a long term equilibrium between buyers and sellers –
- No net money entering or leaving the market
- But when more net money enters or leaves markets – what we can see is when the system (share market) has become inherently unstable, fragile, vulnerable – see bigger chances of large gains or losses
- Lots of money entering markets – through feedback loops – starts to exponentially increase the chances of anyone small perturbed event being the trigger for critical phase transition – right now
- All about probability – increasing with the nature of markets and the early warning signs
- Events that push the market out of equilibrium happen randomly – at any time – but the probability of one event triggering a collapse is low if the markets around a long term equilibrium between buyers and sellers –
- Another preface – expansion of similar policies that have created a bubble are currently continuing –
- QE4, printing press with cheap money – may create more of a bull run in the markets over the next 12 months
- But these events create more of a fragile market – so while the markets may run for the next few months to years, the collapse will be of a bigger magnitude when it occurs
When markets collapse – it is chaos
– thankfully a school of complexity theory helps with this – that is chaos theory
- Jeff Goldblum – his character from Jurassic Park is a mathematician who specialises in chaos theory
- Chaos theory is very useful when the apparent randomness of chaotic complex systems (such as a share market) has an underlying pattern, along with feedback loops creating repetition and self-similarity and self-organization
- The metaphor for this behaviour is that a butterfly flapping its wings in China can cause a hurricane in Texas –
- The butterfly effect describes how a small change in one state of a deterministic nonlinear system can result in large differences in a later state, meaning there is sensitive dependence on initial conditions.
- What is chaos theory a branch of mathematics focusing on the behaviour of dynamical systems that are highly sensitive to initial conditions – looking at the theoretical probability of chances happening in non-linear models
- Initial conditions – called a seed value, is a value of an evolving variable at some point in time designated as the initial time – in financial markets – the variables change every second the market is open – number of buyers, sellers, currency exchange, employment, costs – many variables – at any given point – say now is time t – where do each of these lie? – then aims to look at the probability of something happening from here
- Chaos relates to the Sensitivity to initial conditions – this is a key characteristic of complex deterministic systems
- But due to the nature of complex systems – the system may change dramatically without a change to initial conditions, but rather as the result of moving beyond critical tipping points, or points of no return
- Why is it almost impossible to time market?
- Small differences in initial conditions- even due to rounding errors in numerical computation – so each calculation based around the assumptions can yield widely diverging outcomes – renders long-term prediction of market behaviour impossible – behaviour is known as chaos:
- Chaos: When the present determines the future, but the approximate present does not approximately determine the future.
- All this means is that markets may collapse at any time for any number of reasons – hence chaotic –
- Small differences in initial conditions- even due to rounding errors in numerical computation – so each calculation based around the assumptions can yield widely diverging outcomes – renders long-term prediction of market behaviour impossible – behaviour is known as chaos:
Collapses are well explained by the nature of complex systems – due to the features of complex systems – go through 6 main:
- Cascading failures – there is a high level of interconnection in complex systems – lots of buyers and sellers following a crowd – creates a strong coupling between components in complex systems – i.e. buyers and sellers and the shares themselves
- A failure in one or more components can lead to cascading failures which may have catastrophic consequences on the functioning of the system – cascading is thanks to interconnection
- Localised attack may lead to cascading failures and abrupt collapse in spatial networks.
- Complex systems can be open systems – like the share market which is frequently far from energetic equilibrium:
- This is fundamental analysis – what is the share worth based on the FCF models – and what is it trading at
- But despite this flux, there may be pattern stability
- Complex systems may have a memory – The history of a complex system is important due to the cyclical nature of human/investor behaviour – being driven by fundamental human emotions of fear and freed
- Because complex systems are dynamical systems they change over time, and prior states may have an influence on present states.
- More formally, complex systems often exhibit spontaneous failures and recovery as well as hysteresis. Interacting systems may have complex hysteresis of many transitions – crowd behaviour and panics/hysteria
- Dynamic network of multiplicity – dynamic network of a complex system – how connected is the system to the environment? The system is the market – the environment is the world – i.e. every part that interacts with the market from wages, confidence, debt level
- Relationships are non-linear – In practical terms, this means a small perturbation may cause a large effect – i.e. the butterfly effect – a proportional effect, or even no effect at all. In linear systems, effect is always directly proportional to cause
- Relationships contain feedback loops – Both negative (damping) and positive (amplifying) feedback are always found in complex systems
- The effects of an element’s behaviour are fed back to in such a way that the element itself is altered but in the non-linear fashion
Current signs and signals –
- See a lot of listing on share markets – seen it with tech companies that aren’t making money but are listing on the exchange – payment platforms, tech start-ups, ones like Uber – signs of a peaking of markets
- Derivative counter party positions are at an all time high – $1,200 Trillion estimate
- Cost of borrowing all time lows – free money to bankers so no risks for gambling – if you could gamble on CC for 0% interest?
- Aus banks offering Instalment warrants – geared equity products being issued in the billions – self-funding through dividend
- ETF bubble – passive inflows and technology – talked about this already – but of the $15trn printed recently by central banks – $10bn in passive ETF/alternative structures
- One of the biggest ones – Credit/lending in markets all time high in like NYSE – check out graph at website
- (Thanks to advisor perspectives for putting together)
- Back in Dot Com bubble – Negative balance 130bn at peak – went to -45bn while market dropped 47%
- Back in Pre-GFC 2007
- October 2019 – sitting at $240bn but was at $330bn back in July 2018
- Stable/slowdown into Chaotic – Phase transition –
- The lag between net leverage being withdrawn from markets – Occurs every time – cyclical non-deterministic patterns
- Markets go up – then go down – the size of the transitions can differ – it looks like a big one is due –
Pretty heavy episode – leave it there
Next episode – explore the current possible triggers for the markets
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