vault backup: 2026-05-25 19:35:02
This commit is contained in:
@@ -42,6 +42,8 @@ determine optimal or most likely [[strategy]]
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### Stag Hunt
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### Stag Hunt
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> Main article: [[stag-hunt]]
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| Hunter A \ Hunter B | Hunter B: Hunt Stag | Hunter B: Hunt Hare |
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| Hunter A \ Hunter B | Hunter B: Hunt Stag | Hunter B: Hunt Hare |
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|:------------------- |:--------------------:|:--------------------:|
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|:------------------- |:--------------------:|:--------------------:|
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| **Hunter A: Hunt Stag** | Eat stag \ Eat stag | Go hungry \ Eat hare |
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| **Hunter A: Hunt Stag** | Eat stag \ Eat stag | Go hungry \ Eat hare |
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@@ -36,3 +36,8 @@ which links to pages on project setup and my [[takeoff-scripts|takeoff scripts]]
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If you're interested in better ways to take notes,
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If you're interested in better ways to take notes,
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see [[personal-knowledge-management]].
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see [[personal-knowledge-management]].
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### Recipes
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My [[recipes]], most of which I've tested,
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can be found in the backlinks of that note.
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@@ -0,0 +1,8 @@
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---
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title: Contract Strategies for Major Projects
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tags: []
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authors:
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- Edward W. Merrow
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year: 2022
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---
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# Contract Strategies for Major Projects
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@@ -17,7 +17,6 @@ up: "[[recipes]]"
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* **4 cloves** garlic, minced
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* **4 cloves** garlic, minced
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* **6 cups** water
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* **6 cups** water
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* **1⁄4 cup** chopped parsley
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* **1⁄4 cup** chopped parsley
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* **1 Tbsp.** salt
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### Spices
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### Spices
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@@ -27,6 +26,7 @@ up: "[[recipes]]"
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* **1⁄2 tsp.** garlic powder
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* **1⁄2 tsp.** garlic powder
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* **1⁄2 tsp.** onion powder
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* **1⁄2 tsp.** onion powder
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* **1⁄4 tsp.** cayenne pepper
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* **1⁄4 tsp.** cayenne pepper
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* **1 Tbsp.** salt
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* **1⁄4 tsp.** freshly cracked black pepper
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* **1⁄4 tsp.** freshly cracked black pepper
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* **2** bay leaves
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* **2** bay leaves
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@@ -36,8 +36,9 @@ up: "[[recipes]]"
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Add the **sausage** and cook until browned.
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Add the **sausage** and cook until browned.
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Remove the sausage to a bowl and refrigerate.
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Remove the sausage to a bowl and refrigerate.
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2. Add the **onion**, **bell pepper**, **celery**, and **garlic** to the pot.
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2. Add the **onion**, **bell pepper**, **celery**, and **garlic**
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Sauté over medium heat until the onions are soft.
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to the pot.
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Sauté over medium heat until the onions are soft.
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3. Add the **spices**. Stir and continue to sauté for another minute.
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3. Add the **spices**. Stir and continue to sauté for another minute.
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@@ -0,0 +1,28 @@
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---
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title: Stag Hunt
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tags: []
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---
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# Stag Hunt
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In [[game-theory]], the **stag hunt** is a stereotypical game
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which describes two actors, each with the same two options,
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which they must commit to without knowledge of the other's decision
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hunt stag or hunt hare.
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If a hunter chooses to hunt hare, they will catch it.
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A stag, however, can only be taken by the hunters in cooperation,
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so if only one hunter chooses to hunt stag,
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that one will catch nothing and go hungry.
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| Hunter A \ Hunter B | Hunter B: Hunt Stag | Hunter B: Hunt Hare |
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|:----------------------- |:--------------------:|:--------------------:|
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| **Hunter A: Hunt Stag** | Eat stag \ Eat stag | Go hungry \ Eat hare |
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| **Hunter A: Hunt Hare** | Eat hare \ Go hungry | Eat hare \ Eat hare |
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Whether hunting stag or hare becomes the dominant strategy
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depends on the relative payoff of each
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and each actor's trust in the other to cooperate.
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The value in understanding this game
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is understanding that "selfishness"
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is largely not a inherent quality of individuals,
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but a response to [[incentives]].
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@@ -85,8 +85,7 @@ Would I be better of keeping my mouth shut about it?
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#### Incentives
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#### Incentives
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Bonuses based on awarded profit
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Bonuses based on awarded profit
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incentivize problematic behavior
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incentivize problematic [[stag-hunt|hare-hunting]] behavior.
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([[game-theory#Stag Hunt|hare-hunting]]).
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Has such behavior been observed,
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Has such behavior been observed,
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or has chief strategy been organization-aligned
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or has chief strategy been organization-aligned
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in spite of the incentive to defect?
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in spite of the incentive to defect?
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@@ -0,0 +1,98 @@
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---
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id: 2026-05-25T15:02:03-0400
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title: 2026-05-25 15:02:03
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tags: []
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daily: "[[2026-05-25]]"
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---
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# 2026-05-25 15:02:03
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The perceived value of detailed takeoff is baffling
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because its single advantage over reference class forecasting
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(which offers innumerable advantages over detailed takeoff)
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is in itemized pricing,
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but this advantage is nullified
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by the known phenomenon that the precise
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selection of particular items and their quantities
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can not be trusted to be exactly accurate
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due to uncertainty of project conditions,
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and by the observation that material pricing at the time of bid
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is not representative of the cost of buyout.
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The inevitable retort is
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"It's an *est*imate, not an *exact*imate,"
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or some other such reductive dismissal.
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True enough, this method is _a_ way
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of getting close to the true answer of project cost and schedule,
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but it's not an intuitive one.
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For an organizational process to be economical
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it must contribute value greater than its cost.
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Reduction of loss (risk mitigation) is a form of value,
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and is the vector by which detailed takeoff is expected to be economical:
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a more confident estimate (a narrower high-confidence interval)
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allows the organization to bid more aggressively (bid lower)
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without increasing their assumed risk in project execution.
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A lower bid increases the probability of award,
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decreasing the risk that estimating resources will have been wasted.
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We can assume that this is not the vector by which _[[conest|ConEst]]_
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is expected to generate value,
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both because it does not appear to be effective in this regard[^1]
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and because the ConEst estimate is not used as basis to decrease the bid.[^2]
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[^1]: See [[2026-05-22_11-57-18]].
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[^2]: This may be missed opportunity.
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My baseless (and perhaps naive) speculation
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is that a "Hey, we took a closer look and got our price down a bit more"
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may indicate to the customer a [[stag-hunt|stag hunting]] behavior
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that is more valuable than the real decrease in expected profit.
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As an estimating method,
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detailed takeoff is not more _precise_
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(its use does not significantly decrease our certainty),
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but it is more _granular_.
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An estimate based on detailed takeoff can be easily[^3] subdivided
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for use in [[earned-value-management]],
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but its most immediate use is in identifying variation
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from the expected case.
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In other words,
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deciding when overruns can be blamed on mismanagement,
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and when they are simply bad luck.
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[^3]: Depending on the takeoff software.
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The last case is where I'd bet the perceived value of ConEst is found.[^4]
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I can't help but feel that this effort is misplaced.
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If project management is like estimating,
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I have no doubt that they could _all_ benefit from training.
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Identifying who exactly needs it more, then, is pointless.
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As well to identify which cases of great project success
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can actually be attributed to exceptional management
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and not simply [[the-failure-of-risk-management#Red Baron Effect|the Red Baron effect]].
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[^4]: Crew loading and schedule are important points in estimating,
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and EVM is a fine solution there,
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but it would be straightforward to apply the same RCF principles
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that we use for Bid estimates for these as well.
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That we use detailed takeoff in lieu of such methods
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suggests that it is believed necessary for other reasons.
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***
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Working exclusively in multifamily for this time
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has lead me to spend a lot of time thinking about the question
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of how estimating resources are best allocated.
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My understanding of the industry is that,
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despite the apparent focus on cost,
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executive focus is usually on maintaining a consistent volume of work.
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Because as contractors we are thinly-capitalized,[^5]
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failing to do so seems to represent a larger risk
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than a low-margin contract.
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Under these conditions,
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estimating has very little to do with the project itself,
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so we can make assumptions about it
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that might not normally seem appropriate.
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It is because of our narrow market
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that we get to have these much more interesting discussions.
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[^5]: See [[merrow_2022_contract-strategies]].
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