What is the meaning of ex ante and ex post?

What is the meaning of ex ante and ex post?

Ex-post is another word for actual returns and is Latin for "after the fact." The use of historical returns has customarily been the most well-known approach to forecast the probability of incurring a loss on investment on any given day. Ex-post is the opposite of ex-ante, which means "before the event."

What is the legal definition of ex ante?

The term ex ante is a Latin word which means based on assumption and prediction. It also means beforehand or before the event. The term is used generally in the commercial world, where results of a particular action, or series of actions, are forecast in advance.

What is ex ante decision?

Ex ante means "before the event". When you're making a prediction, you're doing so ex ante. The opposite of ex ante is ex post, which means after the event. ... Buying a lottery ticket loses you money ex ante (in expectation), but if you win, it was the right decision ex post.

What is another word for ex ante?

The term ex-ante (sometimes written ex ante or exante) is a phrase meaning "before the event". Ex-ante is used most commonly in the commercial world, where results of a particular action, or series of actions, are forecast in advance (or intended). The opposite of ex-ante is ex-post (actual) (or ex post).

How do you use ex ante?

Examples of ex ante

1. Let us call this the ex ante solution to the rationality of deter rent threats. ...
2. Unfortunately, we have little information from which to construct ex ante predictions of yield variability. ...
3. Deploying these mechanisms is ex ante mutually advantageous, even if we are unhappy with the results.

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What is Expost investment?

Ex-post investment refers to the actual investment in the economy during the period of one year. This aspect of investment is considered in the calculation of National Income.

Who introduced the term ex ante and ex post *?

Keynes, J.M. 1937a. Ex post and ex ante.

How do you use ex-ante?

Examples of ex ante

1. Let us call this the ex ante solution to the rationality of deter rent threats. ...
2. Unfortunately, we have little information from which to construct ex ante predictions of yield variability. ...
3. Deploying these mechanisms is ex ante mutually advantageous, even if we are unhappy with the results.

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How do you spell ex ante?

based on anticipated changes or activity in an economy (opposed to ex post).

How do you calculate ex-ante?

Ex ante variance calculation:

1. The expected return is subtracted from the return within each state of nature; this difference is then squared.
2. Each squared difference is multiplied by the probability of the state of nature.
3. These weighted squared terms are then summed together.

What words have ante in them?

• The English prefix ante-, which means “before,” appears in a fair number of English vocabulary words, such as antebellum and antedate. You can remember that the prefix ante- means “before” from the poker term ante, which means to put money into the pot “before” each round of the poker game begins.

What's the difference between ex ante?

• On the other hand, ex-post means "after the event," while ex-ante means "before the event." Ex-post is backward-looking, and it looks at results after they have already occurred. For investment companies, analysts can use historical returns to forecast the probability of making a profit or loss on an investment.

What is ex ante volatility?

• Ex post volatility takes into account the variability in asset returns and changes of asset weights over time due to trading and drift. Ex ante volatility, on the other hand, is defined as forward-looking portfolio volatility calculated from current assets weights and asset covariance estimates.

What does EX EX mean?

• When used alone, ex as a noun is assumed to refer to a former sexual or romantic partner, especially a former spouse. This often has a derogatory tinge, especially if it refers to unrequited feelings. "Ex-".