If they have a strong argument that they will be able to come back after being marginal, they can take out a loan or seek investment.
Otherwise, it's just a matter of delaying the inevitable.
Otherwise, it's just a matter of delaying the inevitable.
Also: If you shoot someone, you can't defend yourself against murder by saying "his death was inevitable anyways".
Perhaps we differ in our understanding of the meaning of "marginal business"? Do you anticipate that a book store operating at the margins of profitability will weather all price shocks, legislated or otherwise, indefinitely? I do not. I would consider a marginal, struggling business's demise to be inevitable unless it is able to recover and become a thriving enterprise.
A particular price shock may be the last one the marginal business is able to weather, but it's more like the last wave in a long storm drowning a business, not a bullet to the head. You can blame that last wave, but the truth is that at some point, you need to be able to float.
Regarding the impossibility of predicting how long this business might continue with no meaningful profit margin: I would argue that Poisson distributions are pretty well understood at this point.
This is not necessarily true. A more accurate statement would be: If a business is likely to repay an investor at a reasonable market rate (discounted for risk), it should be able to secure a loan or investment. These are not necessarily the same thing, especially in a business where "success" may be defined by the owners as merely holding a steady state. Borderlands is a labor of love for the owner, but we cannot expect investors to feel likewise.
You seem to have a very "industrial" view of business. It's my anecdotal observation that many sole-proprietorship lifestyle businesses are run with less-than-perfectly-rational economic motives. Borderlands is clearly like this. While this does not optimize for macro statistics like GDP, it does seem to optimize for the happiness of the people involved, which is why I think it's a shame that it's being arbitrarily forced under. An 18% increase in total expenses is not just a wave, but a tsunami.
Bike shops sort of have that limitation, the big vendors pick the prices, but they're like 30% over wholesale and so the bike shops get 30% for assembling the bike and selling it. I can't imagine that book stores are prevented from selling books at a higher price.
Why not. Inflation doesn't increase on product evenly. If book sales prices do not inflate, but property and fuel costs do expenses increase but profits do not.