The Price of Presence
Math that's necessary but not sufficient
Two months in, I started calculating the math on a Sunday night flight to Seattle.
The cabin was dark. Most passengers were asleep. I had a window seat, a laptop, and a question I didn’t want to answer: what is the hourly rate for missing his childhood?
I built the model between Phoenix and Seattle. The same hours I was trying to price.
You’re going to put a price on presence. I’m going to help you.
The math can’t tell you if you’re breaking. But it can tell you if the numbers still work. Sometimes that’s enough. Sometimes it isn’t.
The Friction Test asked: can you do this?
This asks: should you?
I hesitated before writing this post. Putting the formulas on paper makes it feel like endorsement. But without the math, you sacrifice blind. You might give up years for a gap that doesn’t survive the cost of chasing it.
I’m not sure if showing you this helps or just makes the sacrifice feel rational. Here’s what I can offer: the math I use, the inputs that matter, and the limits of what any of it can see.
The Five Metrics
I track five numbers to determine whether the corridor is financially viable:
Escape Penalty: What the trap charges you to leave
Travel Expense: What the corridor costs to maintain
Distance Premium: What you capture by traveling instead of escaping
Corridor Rate: Your hourly rate for time in transit
Margin: The number
Five metrics. One answer: does the financial case exist?
I've built a calculator that runs these numbers. What follows explains what it's calculating.
Escape Penalty
What the trap charges you to leave.
The formula:
Once you're trapped, two exits exist: relocate to the work city, or take a local job. If one exit is blocked, the other sets the price. If both are available, the lower cost is your Escape Penalty.
If relocation is blocked:
Escape Penalty = Salary Gap = Corridor Compensation − Local AlternativeIf both exits are available:
Escape Penalty = MIN(Relocation Cost, Salary Gap)Where:
Salary Gap = Corridor Compensation − Local Alternative
Relocation Cost = Annual housing cost increase to move to corridor city
What your number represents:
When you calculate this, you’re looking at what walking away costs.
For me, relocation is blocked. My fiancée has a parenting plan that anchors the family in Phoenix. The only available exit is the local job. My Escape Penalty equals the Salary Gap.
The formula makes the toll visible. It doesn’t tell you whether you should pay it.
How to estimate:
Salary Gap: Corridor Compensation minus Local Alternative. Use total compensation for both (base, sign-on, equity at current value). This is the income you forfeit by taking the local job.
Relocation Cost: If relocation is available to you, estimate the annual housing cost increase. Compare equivalent housing in both markets at current rates. If you’re locked into a low mortgage rate, the cost includes the rate differential. This is what it costs to move your household to the work city.
Which exit is blocked? Custody agreements, eldercare obligations, a child’s special needs, or a spouse’s non-portable career can block relocation. If relocation is genuinely unavailable, use Salary Gap alone.
What to watch for:
The Escape Penalty feels fixed. It isn’t. Corridor compensation changes: stock prices move, bonuses miss, roles shift. Local alternatives change: markets heat up, new employers enter, your skills become more valuable locally. And if your constraints change (custody modification, parent passes, spouse’s career shifts), an exit that was blocked may open. The gap you calculate today may not be the gap in eighteen months.
And the Salary Gap only captures income. It doesn’t capture career trajectory: the roles that may not exist locally, the ceiling the local market might impose. That cost is real but resists calculation in ways the Salary Gap doesn't.
Travel Expense
What the corridor costs to maintain.
The formula:
Travel Expense = Getting There + Place to Stay + Getting AroundWhat your number represents:
This is the price of the path you’re considering. The annual cost of maintaining the corridor. Every dollar here subtracts from the gap you’re trying to capture.
The formula is clean. Your inputs won’t be.
How to estimate:
Three costs. Getting there: what it costs to travel the corridor. Place to stay: where you sleep in the corridor city. Getting around: how you move on both ends. The inputs depend on how you travel. I fly.
Getting there: Search your actual route. Your specific airports, your specific days. Sunday outbound and Friday return is the typical pattern, but it’s also the most expensive. Book one-way. You need the flexibility to change your return when something shifts. Book three to four weeks out for the best prices. Average one-way ticket × number of flights per year. Most weekly commuters fly 80 to 100 flights per year. You’re pricing the distance between where you work and where your family sleeps.
Place to stay: You need a place to sleep in the corridor city. Studio apartment, room in a shared house, extended-stay hotel, crash pad. Research the market around your office. Closer means less getting around but higher rent. Find the trade-off. If you commute daily, this is zero.
Getting around: Don’t underestimate this. Both sides of the corridor add up. Corridor city: airport to housing, housing to office. Public transit, rideshare, your own car. Family’s city: family’s home to airport, rideshare, and parking.
What to watch for:
Travel costs inflate. Fares rise. Housing markets tighten. The corridor that cost $40,000 in Year 1 might cost $55,000 in Year 3.
Distance Premium
What you capture by flying instead of escaping.
The formula:
Distance Premium = Salary Gap − Travel ExpenseWhat your number represents:
This is the point of all this. The wealth you’d build by choosing the corridor over the local alternative. The number that has to be large enough to justify the financial case. Whether it justifies everything else is a different question.
If your number is small, the arrangement is fragile. If it’s negative, you’d be paying to be away from your family.
When you see your Distance Premium, sit with it before moving on. Ask yourself if the number is large enough. Then ask yourself: large enough for what?
What to watch for:
The Distance Premium gets squeezed from both sides. Corridor compensation falls, the Escape Penalty shrinks. Travel costs rise, the Travel Expense grows. Either one compresses the premium. Both at once can eliminate it.
Corridor Rate
Your hourly rate for time in the corridor.
The formula:
Corridor Rate = Distance Premium ÷ Annual Commute HoursWhat your number represents:
This is the conversion you didn’t want to make. When you calculate your Corridor Rate, you’re translating absence into dollars. Time away from your family, priced by the hour. Whether you fly, take a train, or drive, the formula is the same. The corridor takes your hours. This tells you what those hours earn.
The number is precise. What it measures is not.
How to estimate:
Count your transit hours per year. If you fly, multiply flights by average flight time. If you commute by train or car, multiply daily round-trip hours by days per year.
What to watch for:
Corridor Rate is context, not criteria. It doesn’t tell you whether to continue. The margin does that.
But when I saw my Corridor Rate for the first time, I wanted to move past it quickly. Don’t.
Sit with it. $400 per hour. $300. $200. Whatever your number is. That’s the exchange rate between money and being there.
Only you know what your time is worth. Only you know what you’re missing while the meter runs.
Margin
The decision metric.
The formula:
Margin = (Corridor Compensation − Travel Expense) ÷ Local AlternativeWhat your number represents:
The Margin compares what you’d actually keep from the corridor, after paying for it, to what you’d earn staying local. Above 1.00x means you’re ahead financially. Below 1.00x means you’re behind.
The thresholds:
Above 1.30x: Strong. The math isn’t the problem.
1.15x to 1.30x: Go. Less room than it looks.
1.00x to 1.15x: Caution. Something is shifting.
Below 1.00x: Stop. The math no longer works.
These aren’t universal laws. They’re guidelines I use. Your risk tolerance may differ.
What to watch for:
Every input is an estimate. If your Margin is 1.10x, you’re not in Go territory. You’re in “I don’t actually know” territory.
The Breaking Points
The thresholds that collapse the arrangement. These are your tripwires. Cross any one and the financial case disappears.
Corridor Compensation Floor:
Corridor Compensation Floor = Local Alternative + Travel ExpenseIf your corridor compensation falls below this number, you’re flying weekly for no financial gain.
Local Alternative Ceiling:
Local Alternative Ceiling = Corridor Compensation − Travel ExpenseIf local alternatives rise above this number, the gap has closed.
Travel Expense Ceiling:
Travel Expense Ceiling = Salary GapIf your travel costs rise to match the Salary Gap, you've spent the entire gap on the corridor itself. There's nothing left to capture.
The Calculator
I’ve put these formulas into a tool:
Enter your inputs. It calculates the metrics, shows your zone, displays your breaking points. Updates as you adjust.
You don’t have to build the model yourself.
A note on taxes: These formulas assume no state income tax on wages. If you live in a state with income tax, adjustments apply. Corridors within the same state mean simpler taxes.
I’ve never crossed a breaking point. But I’ve watched the gap close.
Last spring, the stock dropped. My Corridor Compensation fell. The Travel Expense stayed the same. I ran the numbers and watched the ratio compress.
Still in Go territory. But the cushion had thinned. I could feel the walls getting closer.
Know your three numbers. Corridor Compensation Floor. Local Alternative Ceiling. Travel Expense Ceiling. Check them when things shift. They're the boundaries of your arrangement.
What the Math Doesn’t Tell You
Five metrics. A single number. Breaking points that tell you when the math collapses.
Here’s what it won’t tell you:
It won’t measure your partner’s capacity. Whether they can sustain another year, or whether they’re already at the edge. Whether “it’s fine” means fine or means something else entirely.
It won’t track the weight you carry. The guilt, the loneliness, the slow erosion that doesn’t show up in any formula.
It won’t count the moments you miss. The mornings, the bedtimes, the ordinary hours that accumulate into a childhood.
It won’t know if you’re adapting or disappearing.
The number can hold while everything else is falling apart.
I track these five metrics. The arrangement continues.
Somewhere around month seven, my stepdaughter started telling me on our Thursday calls where we’re going for our treat run.
My fiancée ran four marathons the year I started flying. We used to run together. It’s how we met. The ratio doesn’t know that.
The math is necessary. It’s not sufficient.
What Comes Next
Next week: Year 1 Review. What actually happened. The flights, the costs, the moments I missed, the places where the arrangement almost broke.
The documentation continues.
If you’re in the trap too, I’d rather hear from you directly: hello@1100mileworkday.com
Disclaimer: I’m documenting this in real-time, with the understanding that the math working doesn’t mean it’s working. These are not recommendations. They’re field notes from an unsustainable arrangement that shouldn’t have to exist. The content in this newsletter reflects one person’s experience and should not be construed as financial, tax, legal, or career advice. Individual circumstances vary significantly. Consult qualified professionals before making decisions affecting your employment, taxes, or family situation. The author is not a financial advisor, attorney, or tax professional.