Toyota, Honda, Nissan and Mazda have had to recall 3.4 million vehicles across the world because of faulty airbags supplied by Takata Corp, which are at risk of catching fire or injuring passengers.

It has been reported that the problem was first raised in October 2011 and the issue again shows how risky huge global supply chains are.

Dr Johnson says firms should not just look at cost when considering their supply chain.

‘Perhaps the answer to this is to put quality and safety first when negotiating contracts for safety critical parts,’ he commented.

‘As more and more firms focus on what they are good at – their core competences – then their suppliers will be trusted for greater proportions of the design and manufacturing of sub-systems and components.

‘This comes with a cost, and that is the loss of control of their supply chains as they cede responsibility to their suppliers while procuring parts at a low price.

‘It is unlikely that carmakers will ever bring certain things – airbags being a prime example – in-house, it’s simply not in their interest as costs are already competitive and they need to find new ways of managing the relationship so that they can have visibility of any issues.

‘This means moving to contracts based on relationships – which give transparency into operations – as opposed to those where price is the be-all and end-all.

‘Takata have paid the price in a reduced share price and will no doubt find themselves under pressure when contracts are negotiated. Toyota, and others, will pay the price through an expensive, and public, recall.’

But Dr Johnson believes if the car manufacturers had acted quicker they could have lessened the damage to their brand.

‘The age of the affected vehicles suggests that this is something that was known previously and the carmakers have been slow to respond,’ he said.

‘The blame has been firmly placed on Takata, who saw a slump in their share price.

‘Swift resolution of a fault can be beneficial, after all firms can be viewed in a positive light if they act swiftly and decisively when customers perceive there to be a risk.’