A market can be efficient only ex-ante, not ex-post.    From Wordnik.com.  [When You Put It That Way, Scott..., Bryan Caplan | EconLog | Library of Economics and Liberty] Reference

The Constitution explicitly forbids ex-post facto laws.    From Wordnik.com.  [Think Progress » The Right-Wing’s Broken Moral Compass] Reference

KURTZ: Well, we'll excuse you on an ex-post facto basis.    From Wordnik.com.  [CNN Transcript - Reliable Sources: Is the Press Kissing up to the Vice President? - August 26, 2000] Reference

Well it seems like the difference is ex-ante vs. ex-post.    From Wordnik.com.  [misdirected outrage] Reference

The arguments are No. 1, that this is an ex-post facto law.    From Wordnik.com.  [CNN Transcript Aug 7, 2009] Reference

It's about the creation of what is called an ex-post facto law.    From Wordnik.com.  [CNN Transcript Oct 25, 2003] Reference

The arguments are number one, that this is an ex-post facto law.    From Wordnik.com.  [CNN Transcript Aug 7, 2009] Reference

As important as the ex-post efficiency is the ex-ante efficiency.    From Wordnik.com.  [The Weekend's Must Reading, Arnold Kling | EconLog | Library of Economics and Liberty] Reference

In fact, imposing costs ex-post will only exacerbate the moral hazard.    From Wordnik.com.  [The Race To Finish Financial Reform] Reference

He also criticized Steve for offering ex-post facto diagnosis of Whitman.    From Wordnik.com.  [Back from the AHA « Knitting Clio] Reference

The problem is that the value of any merger can generally only be determined ex-post.    From Wordnik.com.  [Dennis Whittle: Non-Profit Mergers: The Limits of Selflessness?] Reference

The problem here is the ex-post rationalization that so many people here have adopted.    From Wordnik.com.  [The Volokh Conspiracy » Officer Questioning in a Traffic Stop] Reference

People who really want to change are willing to give up some of their ex-post freedom.    From Wordnik.com.  [Could You Lose a Pound a Week to Save $500? A Guest Post - Freakonomics Blog - NYTimes.com] Reference

Since ABC seems to be (ex-post) consistent with everything it doesn't face that problem.    From Wordnik.com.  [What do you do when a Moron calls you a moron?] Reference

So, what exactly are these pretend regulators regulating other than ex-post fraud and ponzis?.    From Wordnik.com.  [Here come the regulators....everybody duck!] Reference

The ex-post risk premium, on the other hand, involves the historical volatility of the market.    From Wordnik.com.  [The Risk Premium, Arnold Kling | EconLog | Library of Economics and Liberty] Reference

So the status quo will be more upheld either ex-post or ex-ante and I am calling that gridlock.    From Wordnik.com.  [That's one small misstep for Obama, but one giant leap for gridlock.] Reference

No judgment, no condemnation - just an ex-post facto repayment of the resources you took from society.    From Wordnik.com.  [We shouldn’t have to choose] Reference

That was a no-brainer; ex-post facto laws are a violation of both the state and federal constitutions.    From Wordnik.com.  [Hollywood Ending] Reference

In case you're interested, I've put an example on my blog of using "noisy ex-post settling up" with our kids.    From Wordnik.com.  [Credible Incentives for Your Teenage Bum, Bryan Caplan | EconLog | Library of Economics and Liberty] Reference

This is why it's CRITICAL for new PJs to never accept ex-post facto (after the fact) "assignments" for spot news.    From Wordnik.com.  [Use Assignment Confirmations] Reference

So they have ginned up an ex-post facto reason for that -- if we don't like him, he must be psychologically flawed.    From Wordnik.com.  [John McQuaid: Is Obama a "Narcissist"?] Reference

If you always provide ex-post insurance you can be quite sure that in five or 10 years 'time another crisis will come.    From Wordnik.com.  [Bank of England Chief] Reference

Shiraz rolled his eyes: "Look, you know and I know if I pushed it, I can have the case thrown out on ex-post facto laws.".    From Wordnik.com.  [Peter Mehlman: Second Chair] Reference

But the de facto regime's ex-post facto claims that the coup was legal fall flat because they very egregiously broke the law too.    From Wordnik.com.  [Adam Isacson: The Only Way Out For Honduras] Reference

Thus, the ex-post justification perforce devolves into a claim that the benefits are positive, not that the benefits exceed the costs.    From Wordnik.com.  [~ Angry Bear] Reference

The seatbelt argument you bring up only helps the affected actor, even if in rare cases ex-post facto determinations suggest otherwise.    From Wordnik.com.  [The Volokh Conspiracy » “Exploitation” of the Poor is a Poor Reason to Ban Organ Markets:] Reference

The results are computed ex-post with perfect 20/20 hindsight on the data for 30 trading days from March 11, 2009 through March 22, 2009.    From Wordnik.com.  [Irene Aldridge: How Profitable Are High-Frequency Strategies?] Reference

A Bill of Attainder is an ex-post facto change in the law designed to inflict punishment on a single person or a small identifiable group.    From Wordnik.com.  [David Fiderer: When Hedge Fund Managers Talk, Andrew Ross Sorkin Transcribes, Uncritically] Reference

I stress supplement, which means to add ex-post, not to impose ex-ante.    From Wordnik.com.  [Gates of Vienna] Reference

Is it feasible to have outcomes-based regulation with ex-post liability?.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Movements in the ex-post rational price are remarkably small and smooth.    From Wordnik.com.  [Muti] Reference

Graph showing S&P500 price versus ex-post rational value - real detrended.    From Wordnik.com.  [Muti] Reference

Such an ex-post funding mechanism has several advantages over an ex-ante fund.    From Wordnik.com.  [Dealscape] Reference

Various ex-post analyses are inconclusive in assessing the tax credit's impact.    From Wordnik.com.  [Home | The New York Observer] Reference

This is likely to increase the focus on prevention and ex-post disaster management.    From Wordnik.com. Reference

We show that a fixed period distorts the consumer's ex-post incentives to work hard.    From Wordnik.com.  [Bankruptcy Litigation Blog] Reference

Even proponents of EMH concede that the market isn't perfect, at least on an ex-post basis.    From Wordnik.com.  [The Capital Spectator] Reference

In the graph, the real price of the S&P 500 is compared with the ex-post rational real price.    From Wordnik.com.  [Muti] Reference