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charles lee

charles l.

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Suppose both a chemical company and a commercial fishery operate on the same river. The chemical company produces effluent that reduces the number of fish, harming the fishery's profits. According to the Coase Theorem the socially efficient level of emissions could be reached through bargaining between the two parties if which of the following conditions were met? (CHOOSE ALL THAT APPLY) a. negotiation costs are low b. negotiation costs are high c. property rights are clearly defined d. the cost of abatement is under 20% of the chemical company's profits e. there is a government regulator to tax the chemical company

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Question 6 The unemployment rate: was zero during the 1990s in the United States. was zero on average between 1900 and 1950 in the United States. has never been zero in the United States. is usually zero when the economy is not in a recession or depression. 3 pts

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Which of the following facilitated the housing price bubble ________. only occurred in the emerging economies was aided by low interest rates on residential mortgages was not a contributing factor to the 2007-2008 recession cannot be explained

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What is the payback period for the cash flows shown below? End of Year Net Cash Flow 0 -20,000 1 -20,000 2 -30,000 3 50,000 4 20,000 5 60,000 6 40,000 a) 3 b) 4 c) 4.5 d) 5

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Explain how imperfect information problems such as adverse selection and moral hazard might affect the following markets. The market for wireless Internet connectivity at large international airports. A. Sellers signal their Internet quality, eliminating the sale of low-quality Internet service due to adverse selection. B. Imperfect information will not affect this situation. C. It is difficult to know how well a company's Wi-Fi will work until after it is set up due to imperfect information. D. After the transaction, sellers are unwilling to provide Internet services due to moral hazard. The market for renter's insurance. A. The insurance company has no incentive to consider the full costs of its behavior due to moral hazard. B. Those with insurance are less likely to take precautions to safeguard their property due to moral hazard. C. The insurance company charges inefficiently low premiums due to adverse selection. D. Those with insurance are absolved from the consequences of their actions due to adverse selection. The market for used automobile tires. A. Consumers have less information than sellers, resulting in low-quality tires being exchanged due to moral hazard. B. Sellers have more information than consumers, resulting in a disproportionate number of low-quality tires being sold due to adverse selection. C. After the transaction, sellers are unwilling to provide tire service due to moral hazard. D. Sellers signal their tire quality, eliminating the sale of low-quality tires due to adverse selection. The market for pharmaceuticals purchased over the Internet. A. After the transaction, sellers are unwilling to provide online pharmaceutical purchases due to moral hazard. B. Sellers signal their product quality, eliminating the sale of low-quality pharmaceuticals due to adverse selection. C. Consumers cannot verify which companies selling pharmaceuticals are reliable due to imperfect information. D. Imperfect information problems will not affect this situation. Click to select your answer.

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Question 1 Differentiate the function. r(t) = (8t\textsuperscript{2} - 12)i + \left(\frac{1}{18}t\textsuperscript{3}\right)j r'(t) = (16t)i - \left(\frac{1}{6}t\textsuperscript{2}\right)j r'(t) = \left(\frac{1}{6}t\textsuperscript{2}\right)i + (16t)j r'(t) = (16)i + \left(\frac{1}{3}t\textsuperscript{2}\right)j r'(t) = (16t)i + \left(\frac{1}{6}t\textsuperscript{2}\right)j

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7. [20%] The circuit below is a BJT differential amplifier with $V_{CC} = V_{EE} = 3 V$. The DC current source $I_{EE}$ is assumed ideal. The two transistors are identical, operate in the active region, and have $alpha = 0.99$ and $V_A = infty$. The thermal voltage $V_T$ is 26 mV at room temperature. The input is purely differential, i.e., $V_{ip} = -V_{im} = V_{id}/2$. a) Draw small-signal differential-mode half circuits of the differential amplifier. (5%) b) Express the differential voltage gain $A_d$, which is defined as $(V_{op} - V_{om})/V_{id}$, in terms of $I_{EE}$, $R_L$, $alpha$ and $V_T$. (6%) c) If $I_{EE} = 2mA$, what should be the value of $R_L$ to achieve $A_d = 40$? (4%) d) Choose another set of $I_{EE}$ and $R_L$ to maintain $A_d = 40$ while reducing the power consumption by half compared to the situation in part c). (2%) e) What is the maximum $A_d$ that the circuit can achieve if the DC levels at the output nodes $V_{op}$ and $V_{om}$ must be equal to or higher than 0V? (3%)

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Is it important for sociologists to consider the race beyond a single dimension? Why or why not?

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An electric vehicle is being designed that uses a 7 HP alternating current electric motor for its propulsion due to its low cost and high performance. Because it is an alternating current motor, it rotates linearly depending on the frequency of the supply current, that is, when it is fed with 60 Hz the motor rotates at 3600 RPM. In order to vary the motor speed, a frequency inverter is required that has a range of 10 Hz to 90 Hz and a voltage variation of 50 VAC RMS to 120 VAC RMS. The voltage reference will be obtained from a DAC inside a microcontroller, having a maximum voltage at the output of 5 Vpp. Power is from a bank of 14 13.5 Volt Li-Ion batteries. Transistors for the problem: MJ15003, MJ15004, MJ802, 2N3055, MJ2955, MJ15015, MJ15016, MJE15028, MJE15029, MJE15032, MJE15033.

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Example 1 ?) Find the solution set of the following inequalities $x \ge 0$, $y \ge 0$ and $2x + 3y \le 6$.

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