Ten-year-old casey refuses to line up at the door after recess. instead, he shoves past the other students, yelling that he has to be the first one in the door. casey is displaying a deficit.

performance                                                          

Explanation:

Performance deficit: The term 'performance deficit' is defined as an individual's or student's propensity to know the skills required to perform a particular behavior or task but unable to use those skills consistently.

In other words, a student has the capability to use a particular skill to perform a task yet not using that skill.

In the question above, Casey is displaying a performance deficit.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.