SalaryGuru (Responding to BigMoneyJim):
What you are trying to do is take the current withdrawal rate of Mr. ER 2000 and back test it against history. If that were valid, then you would conclude that Mr. ER 2000 was 100% safe when he started with is 4.1% inflation adjusted withdrawals, but is now less than 100% safe with that same withdrawal strategy. But if he's no longer 100% safe, then what did 100% safe mean 4 years ago?
I think that the point being made here by SalaryGuru is an important one. SWR analysis is a risk assessment tool. The idea is to give you in advance of the day you turn in your resignation an idea of what may happen in the years to come. If we start using the tool in such a way that we cannot trust the risk assessments it provides to remain stable, the value of the tool is greatly diminished.
Say that you retired on January 1, 2000, and that you possessed confidence at the time that 4 percent was the true SWR. Say that Bernstein is right that the true SWR was actually 2 percent. Say that you are living on $60,000 per year. Say that you discover your mistake in at the end of 2005. That means that, at the time you begin looking into the belt-tightening idea, you have already spent $150,000 more than you would have had you used a more accurate SWR methodology. You would have to do two things at this point--reduce your spending by $30,000 per year and make up for the $150,000 shortfall. That's a lot of belt-tightening.
You could return to the workforce poorer than you were the day you left it and five years older. That idea possesses little appeal to me.
You could change your investment allocation to bring your SWR back up to the levels you were seeking in the first place. In all likelihood, however, it would be a fall in stock prices that would cause you to question the conventional methodology. That means that you would be selling your stocks at the worst possible time, when their prices were lowest. Again, the idea possesses little appeal.
I think that it makes more sense to properly assess your risks before turning in the resignation. SalaryGuru is being stubborn about the point he is making, but I think he is being stubborn for a very good reason. He is saying that it does not make sense to have confidence in the 4 number and not in the 6 number. Confidence in the 6 number is a logical consequence of belief in the same things that justify confidence in the 4 number.
SalaryGuru has more confidence in the 4 number than I do. We are not in agreement on some core issues. But I think that he is making a strong point on the logicial consequence issue. He is right when he says that those who do not feel comfortable with the 6 number should be asking themselves whether there is something wrong with the 4 number as well.
What you are trying to do is take the current withdrawal rate of Mr. ER 2000 and back test it against history. If that were valid, then you would conclude that Mr. ER 2000 was 100% safe when he started with is 4.1% inflation adjusted withdrawals, but is now less than 100% safe with that same withdrawal strategy. But if he's no longer 100% safe, then what did 100% safe mean 4 years ago?
I think that the point being made here by SalaryGuru is an important one. SWR analysis is a risk assessment tool. The idea is to give you in advance of the day you turn in your resignation an idea of what may happen in the years to come. If we start using the tool in such a way that we cannot trust the risk assessments it provides to remain stable, the value of the tool is greatly diminished.
Say that you retired on January 1, 2000, and that you possessed confidence at the time that 4 percent was the true SWR. Say that Bernstein is right that the true SWR was actually 2 percent. Say that you are living on $60,000 per year. Say that you discover your mistake in at the end of 2005. That means that, at the time you begin looking into the belt-tightening idea, you have already spent $150,000 more than you would have had you used a more accurate SWR methodology. You would have to do two things at this point--reduce your spending by $30,000 per year and make up for the $150,000 shortfall. That's a lot of belt-tightening.
You could return to the workforce poorer than you were the day you left it and five years older. That idea possesses little appeal to me.
You could change your investment allocation to bring your SWR back up to the levels you were seeking in the first place. In all likelihood, however, it would be a fall in stock prices that would cause you to question the conventional methodology. That means that you would be selling your stocks at the worst possible time, when their prices were lowest. Again, the idea possesses little appeal.
I think that it makes more sense to properly assess your risks before turning in the resignation. SalaryGuru is being stubborn about the point he is making, but I think he is being stubborn for a very good reason. He is saying that it does not make sense to have confidence in the 4 number and not in the 6 number. Confidence in the 6 number is a logical consequence of belief in the same things that justify confidence in the 4 number.
SalaryGuru has more confidence in the 4 number than I do. We are not in agreement on some core issues. But I think that he is making a strong point on the logicial consequence issue. He is right when he says that those who do not feel comfortable with the 6 number should be asking themselves whether there is something wrong with the 4 number as well.