Lag

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Lag

Payment of a financial obligation later than is expected or required, as in lead and lag. Also, the number of periods that an dependent variable in a regression model is "held back" in order to predict the dependent variable.

Lag

1. A late payment.

2. In a quantitative model, the length of time considered in the past that is used to predict a future variable.
References in classic literature ?
The apes trailed out behind the two white men for a matter of a few miles; but presently their interest lagged, the foremost of them halted in a little glade and the others stopped at his side.
Several times he took hold of the Englishman's arm and pushed him forward not ungently, but when the captive lagged again and again the fellow suddenly, and certainly with no just provocation, flew into a perfect frenzy of rage.
One day, riding in the Pampas with a very respectable "estanciero," my horse, being tired, lagged behind.
I noticed, though, that whenever one looked tired and lagged, she let it slip past.
And in the contemplation of this sublime something the soul was exalted to inconceivable heights of which it had before had no conception, while reason lagged behind, unable to keep up with it.
I did not stop to consider the subtleties of the system by which the real hunter lagged behind while his subordinate pointed the quarry like a sporting dog.
That he was sorry he had been run in before getting back to town, as he had proposed doing himself the honor of paying me a call; however, he trusted it was only a pleasure deferred, and he begged me not to go and get lagged myself before he came out.
But his willingness lagged behind her feverish impatience.
That could hardly be, she knew, until an hour past midnight; but in the country silence, which did anything but calm the trouble of her thoughts, time lagged wearily.
They're soft-hearted psalm-singers, or they wouldn't have taken him in at all; and they'll ask no questions after him, fear they should be obliged to prosecute, and so get him lagged.
The economic variable Y is affected by not only the value of X at the same time t but by its lagged values plus some disturbance term i.
I use working-age population growth and lagged tax rate (total tax revenue as percentage of GDP) as the instrument variables.