Proprietorship

A Proprietorship is a business firm that is owned by a single individual who is fully liable for the debts of the firm. In addition to assuming the responsibilities of ownership, the proprietor often works directly for the firm, providing managerial and other labor services. Many small businesses, including neighborhood grocery stores, barbershops, and farms, are business proprietorships. Proprietorships account for 72 percent of the business firms in the United States. Because most proprietorships are small, however, they account for less than 5 percent of all business revenues.
A partnership consists of two or more persons who are co-owners of a business firm. The partners share risks and responsibilities in an agreed-upon manner. There is no difference between a proprietorship and a partnership in terms of owner liability. In both cases, the owners are fully liable for all business debts incurred by the firm. Many law, medical, and accounting firms are organized along partnership lines. However, this form of business structure accounts for only 8 percent of the total number of firms and 10percent of all business revenues.

Prices of options

The price of an option that is freely traded on a commodity exchange fluctuates in response to price changes in the underlying commodity futures contract. The same anonymity exists between an option buyer and an option writer as exists between the buyer and the seller of a commodity futures contract. Like a futures position, an option position may be closed out at any time through simple transference to a third party, via an offsetting transaction made in the options trading pit on the floor of the futures exchange. There are fixed strike prices at which options on futures may be contracted, and each option has a fixed expiry date, preceding the expiry date of the underlying future by up to five weeks. Some actively traded commodities, such as gold, currencies, and the S&P500 stock market index have options expiring every month.
The life of an option is always less than the life of its associated futures contract, with 6 months being about the maximum term. Since an option is traded right up to its moment of expiry, the term to expiry of an option continuously diminishes with the passage of time. It is possible to buy or sell an option with a term to expiry as short as 1 minute.
An option is defined by its strike price and by its date of expiry. For example, the buyer of an August 360 gold call is buying the right to purchase a contract of August gold at $360 per ounce at any time up to and including the moment the option expires (expiry of August gold options is on the second Friday of July). Each listed option is traded independently of all others; for example, an August 360 gold call, and a September 370 gold call are separate and independent options contracts.
The price at which an option trades in the free market will depend upon the strike price of the option, the prevailing price of the futures contract to which the option is attached, the anticipated price variability in that futures contract, and the time remaining until expiry of the option. In the very short term, any increase in the price of a futures contract will result in higher call option values and lower put option values for options on that future. Likewise, any decrease in the price of a futures contract will result in higher put option values and lower call option values. Price variability in a futures contract will be the main determinant of the values that the market will place on its associated options. For this reason, and because there are so many options on each futures contract, price charts are not normally kept for options.
A call option is said to be in-the-money when its underlying future is trading at a price higher than the strike price of the option. An option which is in-the-money has real value even if exercised immediately; in practice, this is rarely done unless the option is so deep in the money that the buyer is willing to sacrifice a small residual option premium in favor of cash. When a call option has no immediate exercise value, it is said to be out-of-the- money, its market value deriving entirely from its potential, that is, the potential for the future to rise above the strike price during the remaining life of the option. Reverse arguments hold for put options. A put option is in-the-money when the futures price is under the strike price. An option with a strike price exactly equal to the futures price is said to be at-the-money and is the option in which trading is likely to be most active. Options are available at strike prices so far out of the money, and with such short times to expiry, that only a massive economic dislocation or a mammoth natural disaster could give them any terminal value. These options can be purchased for as little as $25, and very occasionally,like a lottery ticket, one of them will pay off.

Economic efficiency

Economists make use of the standard of economic efficiency to evaluate the desirability of economic outcomes. We now want to explore it in more detail. The central idea of economic efficiency is straightforward. For any given level of cost, we want to obtain the largest possible benefit. Alternatively, we want to obtain any particular benefit for the least possible cost. Economic efficiency means getting the most value from the available resources-making    the largest pie from the available set of ingredients, so to speak. Economists acknowledge that individuals generally do not regard the efficiency of the entire economy as a primary goal for themselves. Rather, each person is interested in enlarging the size of his or her own slice. But if resources are used more efficiently, the overall size of the pie will be larger, and therefore, at least potentially, everyone could have a larger slice. For an outcome to be consistent with ideal economic efficiency, two conditions are necessary:
Rule 1 – Undertaking an economic action is efficient if it produces more benefits than costs. To satisfy economic efficiency, all actions generating more benefits than costs must be undertaken. Failure to undertake all such actions implies that a potential gain has been forgone.
Rule 2 – Undertaking an economic action is inefficient if it produces more costs than benefits. To satisfy economic efficiency, no action that generates more costs than benefits should be undertaken. When such counterproductive actions are taken, society is worse off because even better alternatives were forgone.
Economic efficiency results only when both of these conditions have been met. Either failure to undertake an efficient action (Rule I ) or the undertaking of an inefficient action (Rule 2) will result in economic inefficiency.  We have avoided using a specific example here to ensure you understand the general idea of efficiency without linking it to a specific application. As we will show, the concept has wide-ranging applications- from the evaluation of government policy to how long you choose to brush your teeth in the morning.
The marginal cost curve shows the cost- including any opportunity costs- of spending additional time, effort, and resources on the activity. At Q,, the height of the marginal benefit curve exceeds the height of the marginal cost curve. Thus, at that point, the additional benefits of expanding the activity past Q, exceed the additional costs. According to Rule 1 of economic efficiency, we should continue to expand the activity until we reach Q2.Beyond Q2(at Q3,for example), the height of the marginal benefit curve is less than the height of the marginal cost curve. The additional benefits from expanding activity to that point are smaller than the additional costs. According to Rule 2, at Q,, we have gone too far and should cut back on the activity. Q2is the only point consistent with both rules of economic efficiency.