I understand - really. But a builder who buys a lot, builds a house and sells it, the builder is the entrepreneur. (The developer/entrepreneur gets his EI/profit from the sale of the lot.) If the builder is also the developer, he makes a profit on the sale of lots (whether he builds houses on them or sells them to others who will) probably accounts for his profit on lots and the sale of completed houses differently. His EI for the development is in the value/prices of the lots; his EI in the sale of completed houses is in the value of the lot and the profit on the cost of building the house.
Which is immaterial. I understand EI. The responses to my saying that EI is included in #6 of the M&S is what was questioned. Whether M&S includes entrepreneurial incentive in its square foot method estimates of costs is the question, isn't it? I believe that it is, and would welcome knowing if that is not the case.
Peter-
I know you understand EI, but the question you raise is one I get a lot when I do a CA presentation.
Here's an example of what I use in my presentaiton (which also addresses the notion that an individual user doesn't need an incentive...EI... to take on the job him/herself):
I pick a person in the class and ask them,
"You have the opportunity to buy a house, and you can buy it 2-ways:
A. You can purchase the house ready to go. Ready to go, it is worth $300k, and your willing to pay that.
Or
B. You can purchase the site and build the house yourself. The cost to do that is $300k, which is what it will be worth in the market. Assume for this example that there are no holding costs.
Both homes will be exactly the same with no differences in quality, condition, site, or location. Which one would you buy and why?"
Inevitably, the answer is something like this,
"What, are you an idiot? I'd buy the one that is ready to go. Why would I want to go through the hassle of developing it myself for the same cost?"
Then, I ask,
"OK. Then would you do it yourself if, say, it only cost you $295k but it was worth $300k in the market?"
The answer is, again, "no", but you can see where this is going. I may get down to a level of around $260k cost, value $300k, before the individual says,
"Yeah. At that stage, I'd do it, if I can save $40k."
That savings of $40k for the owner-user is the EI it is necessary for that particular owner-user to incent the individual to develop the project him/herself rather than buying one that is ready to go. The $40k in this example is the EI. Now, a professional developer might not require $40k (which is 15% of the projected cost of $260k). A professional developer does this for a living and may be willing to take less. If the professional developer is willing to take less, then the professional developer will bid more for the land and get the deal done.
Contractor's profit is a direct cost. Even if a contractor is the developer, cost is cost and if the contractor didn't do the work him/herself, then he/she would have to bid out the project to a contractor that would require a profit to do the work.
Entrepreneurial Incentive is the amount necessary for a rationale person to take on the risk of developing the project. It can be thought of as the amount necessary to get someone off the couch and to begin the development project.
M&S and most other costing services include contractor's profit in their estimates.
Contractor's profit is not EI. EI is necessary, otherwise no developer would make any profit and all homes (or any improvement) would be owner-user developed & financed because there would be no incentive for anyone else to develop properties.
Now, there is a difference between EI and EP. EI is what it takes to incent a person to take on the development of the project him/herself. EP (Entrepreneurial Profit) is what the developer actually makes, and may be much different then their necessary EI. This is also different from contractor's profit. A contractor has his/her profit locked into the construction cost. They (presumably) will make their profit regardless if the house sells for above or below its cost. They have no "risk" (at least, not in the CA model).
The developer has risk; the easiest one to think about is market risk. The market may change from the time the developer decides to take on the project to the time when the house is finished. If the market goes down, the developer will not realize his/her EI and may take a loss. On the other hand, if the market goes up, the developer will not only achieve his/her EI but also get a profit on top of that (EP).
Regardless if the developer makes or loses money, the developer will only take on the project if he/she believes the EI is achievable. It is the minimum required, and therefore it is always present in the CA calculation.
In times when a project is not financially feasible, EI is still present in the calculation. No developer is going to give it up (although they may be willing to reduce it). This is the scenario where one can purchase an improved property at a price less than what it would cost to create (after accounting for all forms of depreciation): that gap, the difference between the costs to create + EI and the value in the market would be attributable to economic obsolescence.
Like I said, you may know this, but this is a topic that I spend a fair amount of time on when giving a CA class, so I thought it was worth emphasizing.