1. helen luong, a currency trader for pegasus partners, uses the following futures quotes on the british pound (£) to speculate on the value of the pound. british pound futures, us$/pound (cme) contract = 62,500 pounds 1 contract is £62,500 open maturity open high low settle change interest march 1.4432 1.4471 1.4422 1.4468 0.0036 25,605 june 1.4275 1.4296 1.4267 1.4280 0.0005 809 a. if helen buys 5 june pound futures, and the spot rate at maturity is $1.4042/£, what is the value of her position? b. if helen sells 12 march pound futures, and the spot rate at maturity is $1.4632/£, what is the value of her position? c. if helen buys 3 march pound futures, and the spot rate at maturity is $1.4632/£, what is the value of her position?

Aceramics manufacturer sold cups last year for $7.50 each. variable costs of manufacturing were $2.25 per unit. the company needed to sell 20,000 cups to break even. net income was $5,040. this year, the company expects the price per cup to be $9.00; variable manufacturing costs to increase 33.3%; and fixed costs to increase 10%. how many cups (rounded) does the company need to sell this year to break even?

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e. g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.

Alaska king crab fishing in the 1960s and '70s was a dangerous but rich fishery. boats from as far away as california and japan braved the treacherous gulf of alaska crossing to reach the abundant king crab beds in cook inlet and bristol bay. suddenly, in the early 1980s, the fishery crashed due to over fishing. all crabbing in those areas ended. to this day, there is no crabbing in bristol bay or cook inlet. a. how would an economist explain the decline of the alaska king crab fishery