its done in other countries
Not so in my industry. It's a global sector, we work with global clients, and are competing with firms in other markets.
A company that decided to over-staff the same project with double the headcount just to provide a buffer in case of the times it might get extra busy, and absorbed those costs directly (because they couldn't bill them to the client) would go bust very quickly. £100k billable hours but staffing with £200k worth of hours - simply not sustainable
Where does the money come from to resource the same project for the same money with 50% extra staff?
If a supermarket suddenly puts the prices up by 50% for the same products, and everywhere else is selling them for the same, you're going to switch supermarket.
If the supermarket decides to switch from selling everything at cost, to giving away 3 for the price of 2 on everything, without passing on any of that cost to the customer, they'll go out of business fairly rapidly
So you should be in a good bargaining position for better conditions?
Exactly the opposite to where Gertrude works it seems
I'm in an excellent position to bargain for more money. Supply and demand.
The more in demand your skills, the higher the salary or day rate you can command
I do use it to bargain for better conditions. I insist that my terms are my day rate and a 4-day week. They can take me part time or leave it. They take me on because they value what I do and the contribution I make. But there's no question that my being part time makes life more difficult for my colleagues. And that if I were to decide to insist on leaving the office at 6pm as well - regardless of whether the work is done - thereby causing the team to miss deadlines, then my skillset becomes largely irrelevant if the company loses the client's business as a result