Is the psychologist who determined that babies need contact comfort.

Harry Harlow

Explanation:

Contact comfort refers to the intimate care that the mothers give to their infants (including hugs, feeding,  spending time playing with the infants , etc)

According to harlow, infant primates (including humans) will receive a deep sense of comfort and protection from such behavior that will benefit their mental health in the future.  If they did not receive it, they tend to seek this missing care from other people when they are grown up in a more unhealthy ways.

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.