In example 10.4, we saw that our estimates of the individual lag coefficients in a distrib- uted lag model were very imprecise. one way to alleviate the multicollinearity problem is to assume that the dj follow a relatively simple pattern. for concreteness, consider a model with four lags: yt 5a0 1d0zt 1d1zt21 1d2zt22 1d3zt23 1d4zt24 1ut. now, let us assume that the dj follow a quadratic in the lag, j: dj 5g0 1g1j1g2j2, for parameters g0, g1, and g2. this is an example of a polynomial distributed lag (pdl) model. (i) plug the formula for each dj into the distributed lag model and write the model in terms of the parameters gh, for h 5 0,1,2. (ii) explain the regression you would run to estimate the gh. (iii) the polynomial distributed lag model is a restricted version of the general model. how many restrictions are imposed

All else being equal, which is true about a firm with high operating leverage relative to a firm with low operating leverage? select one: a. a higher percentage of the high operating leverage firm's costs are fixed. b. the high operating leverage firm is exposed to less risk. c. the debt payments limit the high operating leverage firm's opportunities to turn a big profit. d. the high operating leverage firm has more debt.

Why should organizations be allowed to promote offensive, violent, sexual, or unhealthy products that can be legally sold and purchased?

You have learned that there are many ethical concerns surrounding genetic research, and it's important to be familiar with them. for this project, you will write a persuasive essay about an ethical question in biotechnology. directions the goal of a persuasive essay is to convince people to agree with you. it is important to support your opinion with facts. a persuasive essay is not simply a description of your beliefs. be sure to organize your information, give clear examples, and build your argument carefully. read the following genetics topics below. choose a topic and then decide what side you are on. remember that there is no "right" or "wrong" side. ethical questions often have many points of view. research your topic and write a 400 word persuasive essay. topic 1: should insurance companies have the right to learn the genetic profiles of the people they insure? topic 2: should employers have the right to learn the genetic profiles of the people they hire? are there special considerations for employees in jobs in which there is a high risk to others, such as airline pilots, doctors, or bus drivers? topic 3: should scientists who identify genes and create new genetic engineering techniques have the right to patent their methods for their own profit?