2163 본문읽기 20
카테고리 없음2023. 5. 13. 20:48
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2163-35
Kinship ties continue to be important today. In modern societies such as the United States people frequently have family get-togethers, they telephone their relatives regularly, and they provide their kin with a wide variety of services. Eugene Litwak has referred to this pattern of behaviour as the 'modified extended family'. It is an extended family structure because multigenerational ties are maintained, but it is modified because it does not usually rest on co-residence between the generations and most extended families do not act as corporate groups. Although modified extended family members often live close by, the modified extended family does not require geographical proximity and ties are maintained even when kin are separated by considerable distances. In contrast to the traditional extended family where kin always live in close proximity, the members of modified extended families may freely move away from kin to seek opportunities for occupational advancement.
2163-36
Spatial reference points are larger than themselves. This isn't really a paradox: landmarks are themselves, but they also define neighborhoods around themselves. In a paradigm that has been repeated on many campuses, researchers first collect a list of campus landmarks from students. Then they ask another group of students to estimate the distances between pairs of locations, some to landmarks, some to ordinary buildings on campus. The remarkable finding is that distances from an ordinary location to a landmark are judged shorter than distances from a landmark to an ordinary location. So, people would judge the distance from Pierre's house to the Eiffel Tower to be shorter than the distance from the Eiffel Tower to Pierre's house. Like black holes, landmarks seem to pull ordinary locations toward themselves, but ordinary places do not. This asymmetry of distance estimates violates the most elementary principles of Euclidean distance, that the distance from A to B must be the same as the distance from B to A. Judgments of distance, then, are not necessarily coherent.
2163-37
A firm is deciding whether to invest in shipbuilding. If it can produce at sufficiently large scale, it knows the venture will be profitable. But one key input is low-cost steel, and it must be produced nearby. The company's decision boils down to this: if there is a steel factory close by, invest in shipbuilding; otherwise, don't invest. Now consider the thinking of potential steel investors in the region. Assume that shipyards are the only potential customers of steel. Steel producers figure they'll make money if there's a shipyard to buy their steel, but not otherwise. Now we have two possible outcomes ― what economists call "multiple equilibria."There is a "good" outcome, in which both types of investments are made, and both the shipyard and the steelmakers end up profitable and happy. Equilibrium is reached. Then there is a "bad" outcome, in which neither type of investment is made. This second outcome also is an equilibrium because the decisions not to invest reinforce each other.
2163-38
In most organizations, the employee's immediate supervisor evaluates the employee's performance. This is because the supervisor is responsible for the employee's performance, providing supervision, handing out assignments, and developing the employee. A problem, however, is that supervisors often work in locations apart from their employees and therefore are not able to observe their subordinates' performance. Should supervisors rate employees on performance dimensions they cannot observe? To eliminate this dilemma, more and more organizations are implementing assessments referred to as 360-degree evaluations. Employees are rated not only by their supervisors but by coworkers, clients or citizens, professionals in other agencies with whom they work, and subordinates. The reason for this approach is that often coworkers and clients or citizens have a greater opportunity to observe an employee's performance and are in a better position to evaluate many performance dimensions.
2163-39
The role that sleep plays in evolution is still under study. One possibility is that it is an advantageous adaptive state of decreased metabolism for an animal when there are no more pressing activities. This seems true for deeper states of inactivity such as hibernation during the winter when there are few food supplies, and a high metabolic cost to maintaining adequate temperature. It may be true in daily situations as well, for instance for a prey species to avoid predators after dark. On the other hand, the apparent universality of sleep, and the observation that mammals such as cetaceans have developed such highly complex mechanisms to preserve sleep on at least one side of the brain at a time, suggests that sleep additionally provides some vital service(s) for the organism. This is particularly true since one aspect of sleep is decreased responsiveness to the environment. If sleep is universal even when this potential price must be paid, the implication may be that it has important functions that cannot be obtained just by quiet, wakeful resting.
Kinship ties continue to be important today. In modern societies such as the United States people frequently have family get-togethers, they telephone their relatives regularly, and they provide their kin with a wide variety of services. Eugene Litwak has referred to this pattern of behaviour as the 'modified extended family'. It is an extended family structure because multigenerational ties are maintained, but it is modified because it does not usually rest on co-residence between the generations and most extended families do not act as corporate groups. Although modified extended family members often live close by, the modified extended family does not require geographical proximity and ties are maintained even when kin are separated by considerable distances. In contrast to the traditional extended family where kin always live in close proximity, the members of modified extended families may freely move away from kin to seek opportunities for occupational advancement.
2163-36
Spatial reference points are larger than themselves. This isn't really a paradox: landmarks are themselves, but they also define neighborhoods around themselves. In a paradigm that has been repeated on many campuses, researchers first collect a list of campus landmarks from students. Then they ask another group of students to estimate the distances between pairs of locations, some to landmarks, some to ordinary buildings on campus. The remarkable finding is that distances from an ordinary location to a landmark are judged shorter than distances from a landmark to an ordinary location. So, people would judge the distance from Pierre's house to the Eiffel Tower to be shorter than the distance from the Eiffel Tower to Pierre's house. Like black holes, landmarks seem to pull ordinary locations toward themselves, but ordinary places do not. This asymmetry of distance estimates violates the most elementary principles of Euclidean distance, that the distance from A to B must be the same as the distance from B to A. Judgments of distance, then, are not necessarily coherent.
2163-37
A firm is deciding whether to invest in shipbuilding. If it can produce at sufficiently large scale, it knows the venture will be profitable. But one key input is low-cost steel, and it must be produced nearby. The company's decision boils down to this: if there is a steel factory close by, invest in shipbuilding; otherwise, don't invest. Now consider the thinking of potential steel investors in the region. Assume that shipyards are the only potential customers of steel. Steel producers figure they'll make money if there's a shipyard to buy their steel, but not otherwise. Now we have two possible outcomes ― what economists call "multiple equilibria."There is a "good" outcome, in which both types of investments are made, and both the shipyard and the steelmakers end up profitable and happy. Equilibrium is reached. Then there is a "bad" outcome, in which neither type of investment is made. This second outcome also is an equilibrium because the decisions not to invest reinforce each other.
2163-38
In most organizations, the employee's immediate supervisor evaluates the employee's performance. This is because the supervisor is responsible for the employee's performance, providing supervision, handing out assignments, and developing the employee. A problem, however, is that supervisors often work in locations apart from their employees and therefore are not able to observe their subordinates' performance. Should supervisors rate employees on performance dimensions they cannot observe? To eliminate this dilemma, more and more organizations are implementing assessments referred to as 360-degree evaluations. Employees are rated not only by their supervisors but by coworkers, clients or citizens, professionals in other agencies with whom they work, and subordinates. The reason for this approach is that often coworkers and clients or citizens have a greater opportunity to observe an employee's performance and are in a better position to evaluate many performance dimensions.
2163-39
The role that sleep plays in evolution is still under study. One possibility is that it is an advantageous adaptive state of decreased metabolism for an animal when there are no more pressing activities. This seems true for deeper states of inactivity such as hibernation during the winter when there are few food supplies, and a high metabolic cost to maintaining adequate temperature. It may be true in daily situations as well, for instance for a prey species to avoid predators after dark. On the other hand, the apparent universality of sleep, and the observation that mammals such as cetaceans have developed such highly complex mechanisms to preserve sleep on at least one side of the brain at a time, suggests that sleep additionally provides some vital service(s) for the organism. This is particularly true since one aspect of sleep is decreased responsiveness to the environment. If sleep is universal even when this potential price must be paid, the implication may be that it has important functions that cannot be obtained just by quiet, wakeful resting.
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