different between predictability vs commitment

English

Etymology

predict +? -ability

Noun

predictability (plural predictabilities)

1. The characteristic of being predictable.

   • There are several ways to approach predictability. One way is to investigate whether asset prices over the past few days or weeks can be used to predict tomorrow’s price. The answer is no. Following a large amount of careful statistical work by Fama in the 1960s, researchers now agree that past prices are of very little use in predicting returns over the immediate future. [...] An implication of the excessive swings in stock prices is that a high ratio of price relative to dividends in one year will tend to be followed by a fall in prices relative to dividends over subsequent years, and vice versa. This means that returns follow a predictable pattern in the longer run. Shiller and his collaborators demonstrated such predictability in stock markets as well as bond markets, and other researchers have later confirmed this finding in many other markets.

Translations

English

Etymology

commit +? -ment

Pronunciation

• Hyphenation: com?mit?ment

Noun

commitment (countable and uncountable, plural commitments)

1. The act or an instance of committing, putting in charge, keeping, or trust, especially:
   1. The act of sending a legislative bill to committee for review.
   2. Official consignment sending a person to prison or a mental health institution.
2. Promise or agreement to do something in the future, especially:
   1. Act of assuming a financial obligation at a future date.
3. Being bound emotionally or intellectually to a course of action or to another person or persons.
4. The trait of sincerity and focused purpose.
5. Perpetration as in a crime or mistake.
6. State of being pledged or engaged.
7. The act of being locked away, such as in an institution for the mentally ill or in jail.

Synonyms

Related terms

• commit
• committal
• noncommittal

Translations

Further reading

• commitment in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• commitment in The Century Dictionary, New York, N.Y.: The Century Co., 1911.