Friday, April 12, 2019
Bpââ¬â¢s Ethical Culture Essay Example for Free
Bps Ethical Culture EssayWe will go through the BP business context and culture, safety aspect, organization capability, responsiveness and risk assessment aspects of their ethical culture, conduct from the management and caused the disaster.BP Business Context and ethical cultureFrom the BP management employer aspects, they are non follow somewhat mechanical level, safety procedure over and ignored which required by Act (e.g. Clean air travel Act) over 8 year for their employment. At the end the huge explosion occurred in March 2005. Because of the hydrocarbon bland bring outage and vapor, the ignition explosion result of the accident. They failed to give the safeguards protection tools to protect employees, this accident killing employees and injure people in Texas anele refinery. And the other issue of the Alaskan oil pipelines leaked their culture also devise the safety negligence in their operation and management. Not check the pipelines by routine sustainment. BP management did not doing any corrective action on the contract worker discovered the first pipeline leak in March of 2006, (e.g. whole stop the pipelines operation for checking details), chill out waiting the leakage happen on August 2006. And in October 2007 another spill in Prudhoe Bay, once again showing that BP was ignored the maintenance equipment and the safety level of the production.In 2010, violations again at BP facilities (at Ohio factory), the Occupational Safety and Health Administration (OSHA) arrange that workers might be exposed to injury or death should explosive or flammable chemicals be released at an Ohio factory. The BP working environment have the characteristic that is resistance to change, lack of trust and motivation unclear expectations about supervisory and management behaviors, led to rules not being followed consistently and no initiating improvements. Management did not set or consistently reinforce process safety, operations performance and systema tic to reduce the risk. e.g. leave out the safety protection tools. (Reference 01) Organizational Capability poor management and communication in the complex organization, uplifted turnover of refinery plant managers which will affect their consistency of responsibilities.Inability to see the risk, poor level of luck awareness and process safety knowledge, e.g. the temporary worker doing wrong on the hydrocarbons to atmosphere with unclear swear in the higher(prenominal) risk and safety industry practice. Lack of early warning system in the refinery plant e.g. poor communication, poor performance-management process and deteriorating the work standards. Means that BP allows the defective process in their production refinery and pipelines channel. Even though the project was carried out before the extensive research to identify any potentiality environment risks of the pipelines stretched to their networkFrom the BP investor aspects, even a huge amount of fines, criminal penaltie s were paid again. They bonny unaccompanied concern the remuneration rather then the employees, environment, base on their short term focus with high level oversight on prevention or improvement and safety management. Even the production was keep out down a month for repairing they just focus on resume the production which means profit as a priority.From the interest group, e.g. content Fish and Wildlife, the state law and act. BP was neglected their monitoring role, just paid the fund or fines to be a remedy, but still running at their unleash management culture.From the BP employees aspects, insider trading and fraud document (mail fraud and wire fraud), and reward from the manipulate the propane market at a high prices Integrity of the BP management, also lack of monitor and alert of the internal control. As the National oil company, the management let company making loss on violate Act, not ground a well control system for employees for prevention. These parts clearly sho wing the history of disregarding the benefit of stakeholders not follow the law and high level operation and maintenance level of BP.Different refinery even have their own safety management system, and they did not share their best practice with others. So doing the equal work but running at different safety system level. And as the employees of BP, from the result of the explosion, oil leakage and fraud issue all of them are affecting their society and economic damage. They know and book these BP culture but they do not concern until the accident or issue occurred.From these aspects of the BP ethical culture, and still no solid continues improvement, then it was caused the Gulf Coast oil spill disaster. At the beginning, BP tried to alternate their responsiveness to the contractor Transocean, Ltd., loosen and negligence management style (know but not concern style), fabrication on the accident real situation to public. And delay the recovery work which subject to their manage ment termination and style.
Thursday, April 11, 2019
Teachers Day Essay Example for Free
Teachers sidereal day Essay?In our country 5th September is celebrated as Teachers day. 5th September is the natal day of a swell teacher Dr. Sarvap onlyi Radhakrishnan. When Dr. Radhakrishnan became the president of India in 1962. It would be my proud privilege if September 5 is observed as Teachers day. The request showed Dr. Radhakrishnans love for the teaching profession. From then onwards, the day has been observed as Teachers solar day in India. On this day, we gratefully remember the great educationist Dr Sarvepalli Radhakrishnan, whose dream was that Teachers should be the best minds in the country. Hence, Teachers Day is very important for all our people, for our students and even for all the parents, as the teachers lay the foundation for creating enlighten citizens for the nation. In the words of Swami Vivekananda, Education is that by which character is formed, strength of the mind is increased, intellect is expanded and which enables a person to stand on ones ow n feet. But in the present scenario, the privatization and commercialisation of education has changed the meaning and values of education.In fact, the aim of education is not the acquisition of information, although important or acquisition of technical skills though essential in modern society but the development of that change shape of mind, that attitude of reason, that spirit of democracy which will make us responsible citizens and good benevolent beings. To pose an enlightened human being, the procedure is three fold. One is moral value system. That a student gets from his parents. Secondly, the teacher becoming a role model. Not only does the student learn, but the teacher shapes his life with great dreams and aims.Finally, the education and learning process has to culminate in the creation of professional capability leading to corporate trust and will power to make a design, to make a product, to make a system, bravely combating umpteen problems. Dear Teachers Every one of us in this planet creates a page in human history irrespective of who he/she is. I realize my experience is a small dot in human life, but that dot has a life and light. This light, let it light many lamps. My best wishes to all of you on this occasion of Teachers Day. Thank you. Dr. Krishan Kant.
Tuesday, April 9, 2019
Professional Sports Team Essay Example for Free
Professional Sports Team EssayThe existing financial crisis has resulted to the economic imbalance. It has threatened and influenced numerous industries non only banking institutions but also the sports industry as well. Understanding how the economic crisis might have affected the sports industry is quite unfathomable, as on the exterior, there seems to be no associations between the economy and the sports industry. However, the feature sports team be in at the moment reveals how the financial crisis has also become a permit down for the sports industry.Apparently, the demand for sports as a means of fun has dwindled as individuals needed to allocate their resources judiciously and responsibly. The economic crisis has caused layoffs and unemployment, and the inability of organizations to increase or maintain the salary of their employees. Due to these situations, individuals have realized the richness of spending money wisely, according to need and priority. The lack of resources that individuals are at present experiencing led them to neglect entertainment and other(a) superficialities, as opposed to the need to provide for basic needs and requirements.As the chief decision maker of the NBA New Jersey Nets, Brett Yormack, has said the competition within the sports industry has gravitated to include other goods and services that are external to what or who sports groups or teams are usually competing with. The goods and services being provided by the sports industry is now competing with other industries that provide the most urgent needs of man. Sports groups and teams have realized that they cannot gain kale from modern means, such as television tie-ups for subscription, but only on conventional approaches such as tag end trading.However, the main problem is that although the sports industry is keen on selling tickets for profit, the inquiry of success still leans towards the skill of individuals to pay for tickets. The sports industry ad dressed this issue by implementing a scheme that is much more commodious for people the buy-now pay-later scheme and therefore, enticing and motivating for individuals to catch the bait. Another economic crisis impact is the restructuring of the sports industry.The diminishing profit of the industry has forced it to cut down on expenses in order to survive the economic turmoil. almost institutions have decided to layoff their employees in order to cut back on expenses being provided for its human capital. The issues aforementioned(prenominal) are in discussion of the implications of the economic crisis on the local sports industry. However, the more serious issue has something to do with the impact of the financial slump on the sports industry on the national level.Sports groups, teams, and establishments are at take a chance for being stripped of funding, as the national government, like the people, is considering the allocation of resources judiciously such that the most car dinal concerns will be provided for against the lighter requirements. For instance, funding for the maintenance of football fields will be in the least priority, as other issues such as health care and public safety weighs heavier in terms of benefits and contributions to society.The sports industry is starting to fall apart altogether since the impact of the financial crisis has started to take its bell shape on the success of the institution. Perhaps it will be difficult to expect changes in the future concerning improvements or developments in the sports industry, not unless the economic crisis is resolved. Surely, the state of the economy is a strong force that relatively influences other institutions such as the sports industry.
Monday, April 8, 2019
Study question the Victorians poetry & prose Essay Example for Free
Study question the Victorians poetry prose Essay1. What is the function of poetry for Mill? Of poets? What differences do you see between his ideal of poetry and the romanticistic ideal? The function of poetry, according to Mill, is to act upon the emotions. It differs from prose or science in a sense that while these address beliefs, poetry is to feelings that while the separate both sues by convincing or persuading, poetry works by moving emotions and while the other two presents a proposition to the understanding, poetry offers interesting objects of contemplation to the sensibilities. Poetry should paint the homosexual soul truly. there is not much difference in Mills function of poetry to Romantic ideals in the sense that both appeal to the emotion of the readers. 2. In the passage from his Autobiography, what does Mill become down(p)/love his corporate trust? What saves him? What is Mills critique of Utilitarian philosophy? Although Mill is a noteworthy exponent of Utilitarianism, he has some objections or criticisms about it. His develop was also an exponent of Utilitarianism and here lies his delemma.He took the oppurtunity to publish his criticisms, alongside with his defense, when an earlier work by Professor Sedgwick was published that assaulted utilitarian ethics, and which had given his father and other utilitarians much indignation. 3. What choice is the bird of Shalott making when she leaves her tower? The Lady of Shalott decides to leave her isolation when she indomitable to leave her tower. All her life she lived in isolation, that although reapers hears her song, none had seen her and she couldnt look down fro her tower because of the curse if she did so. one time she exclaimed I am half-sick of the shadows. Even though she resists looking down from her tower, she finally did when she heard Sir Lancelot burble and the curse is starting to manifest on her. Perhaps, at least at the time of death the Lady of Shalott does not wish to be alone but wish herself to be known to others, that she left the tower, denominate the boat she found The Lady of Shalott, and died crossing the river going to Camelot. 4. Is Ulysses decision to leave his home again (a) rarefied or (b) escapist? Defend your answer.Ulysses decision to leave his home again is an escape to the life in his kingdom. There is nothing heroic in his new conquest, other than to seek a newer world or to touch the Happy Isles. In the beginning of the poesy, Ulysses already suggest that there is little point in staying home and states that he cannot rest from travel. He believes that going back to sea again would yeild some work of noble note suggesting that travelling the seas offers a much simpler and fruitful life than staying home. 5. Explain how the setting and quite a little affect our reading of My Last Duchess?Is the narrator reliable? How do we know? The setting and circumstances in My Last Duchess leads the readers to speculate on th e mysteries that encompasses the poem, speculatively from actual historical events. The tilte itself reveals that the speaker in the poem is a Duke whose last wife had died. The mention of nine-hundred-years-old name suggest that the Duke came from a long line of prominent and stringy family, and through the speaker we know that he is presenting to his audience his art collections suggesting that he is a lover of the arts.There is little error from the information if we take the popular belief that the speaker was Duke Alfonso II, who lived in the 16th century, to be received. Alfonso II came from the house of Este, whose earliest known member lived in the 10th century, which makes his name six-hundred-years-old at the time the duke lived, in contrast with the nine-hundred-years-old name. 6. According to Arnold what is the value of study in the humanities as opposed to tho being educated in science or practical issues?Just being educated in science or practical issues, accordin g to Arnold, has put the world in a state where nothing is certain. It has brought the Sea of Faith in melancholy as scince has challenged the precepts of religion. He hopes that with the confusion brought about by science, education in the humanities would cure the world of its lack of faith. Education in the humanities would, at least, stay the world its moral standards. 7. What does Arnolds poem, Dover Beach suggest as an antidote to the loss of faith?Do you think the poem ends pessimistically or optimistically? In Dover Beach, Arnold suggest that fidelity in love is the antidote to the loss of faith. His appeal Ah, love let us be true suggests that his only hope on this uncertain world rests on the faithfulness of his love interest, probably his wife, to him. The poem still ends pessimistically since Arnold emphasizes on the confusion the world is currently at the time the poem was written.
Sunday, April 7, 2019
Operation Barbarossa Essay Example for Free
public presentation Barbarossa EssayOperation Barbarossa, the code name given to Hitlers invasion of the Soviet Union in 1941, would come to be considered iodine of Nazi Germanys greatest follies in the Second World War, and would piece of cake a monumental role in bringing an end to Hitlers regime just a few years later. Though the operation itself lasted slight than six months it resulted in four years of acid fighting on the Eastern Front, marked by an enormous casualty toll for some(prenominal) the Russians and the Germans and non-finite battles fought in the cruel conditions of Russian overwintertime. All of this despite the fact that both countries had engaged in a mutual non-aggression pack two short years earlier. In 1939 Germany and the Soviet Union signed the Molotov-Ribbentrop Pact, a series of agreements regarding how both countries would split the territory separating them and share the resources therein. Signing of the pact created strong political and eco nomic ties between the two nations, at least on the surface.Historians, however, argue that the pact was doomed to fail persistent before it was even signed, as Hitler had long harbored a disgust for the Soviet Unions Slavonic peoples, which he viewed as sub-human. Couple this racial prejudice with the extremely different political ideologies governing both countries and it becomes clear that the relationship between Germany and the Soviet Union was merely one of temporary convenience. Despite the evaporable nature of the German-Soviet relationship, it still struck many as incomprehensible why Hitler should choose to invade Russia in 1941, with war already raging in the west.One can and judge that Hitler, in a misplaced display of ego, believed the west to already be won, with France effectively crushed and England standing as the only viable opponent on that front, struggling hopelessly to maintain a foothold on the European mainland. Believing the western front was theirs, Germ any sought to expand her influence and complete her domination of Europe by conquering the resource-rich eastern countries- including the powerhouse of the Soviet Union.Preparations for the invasion began in April of 41, as Germany began to secretly pucker soldiery on her eastern borders. The plan involved a one-third-pronged Blitzkreig invade that would simultaneously strike northern Russia with the intention of taking Leningrad, while a second group struck toward Moscow and a third took a southeasterlyern route through the Ukraine. By doing this, Hitler believed that the Russians would be caught completely off guard and would be unable(p) to mount an effective defense in so many places at once. Hitlers plan, however, contained a consider of fatal flaws.Firstly, he greatly underestimated the numbers and strength of the Soviet military, which had effectively doubled its number of troops, gunslinger pieces and aircraft since the outbreak of war in western Europe. Though not all of this strength was situated in the western part of Russia, where Hitler planned to strike, significant advances had also been made in Soviet infrastructure (most significantly, their pressure system) such as go awayed for more efficient movement of troops and supplies, and therefore faster mobilization.Also, the German high quality in armor, which had served them so well in their western blitzkrieg was lost to them here- Soviet tanks, though less technologically advanced at this point in the war, actually outnumbered German tanks approximately four-to-one. The one payoff inarguably held by the Germans was troop quality. The German army was well trained, well equipped and led by experienced and educated officers. The Soviet army, in contrast, were untested by battle and overwhelming led by bunglesome officers, many of whom had been given their commissions in exchange for political favors.The vast majority of Soviet officers had less than one year of experience, as many of the older and more experienced commanders had been executed or imprisoned during Stalins Great Purge between 1936 and 1938. When Operation Barbarossa began in the pre-dawn hours of June 22nd, 1941, Germany initially made fantastic gains. Approximately three million German soldiers, supported by armor and the Luftwaffe swarmed across the border, advancing more than 200 miles in the next 5 days.The only solid ohmic resistance they were met with in the first few days of the attack came in the south, where Soviet commanders reacted quickly and were able to organize an effective defense. The central and northern arms of the German advance, however, met little resistance and charged frontward at full speed- a factor that would later go past to haunt them. Armored divisions of the German army actually advanced too quickly, putting them well ahead of the infantry divisions meant to support them.This forced Hitler to call the Panzer divisions to a halt for nearly a week to allow their acc ompanying infantry troops cadence to catch up- a week that was used by the Soviets to amass troops ahead of the German advance and fortify target cities such as Stalingrad. By the time the order was given to resume the advance, heavy rainstorms struck which greatly slowed the progress of German tanks attempting to slog mound muddy roads. With their advance slowed and the element of surprise expired, the Germans faced ever- change resistance from the Soviet army.In a determination that would prove contraband, Hitler ordered the central arm of the attack to call-off its march for Moscow and redeploy to the north and south, strengthening the other two prongs of the invasion in hopes of quickly capturing the rich oil fields in the south and the Soviet stronghold of Leningrad in the north. This had mixed results, as the southern wing of the attack was eventually palmy in capturing Kiev, and with it an approximate 600,000 Soviet troops, but the advance in the north stalled as heavy r esistance was met in Leningrad.The southern wing, after completing its advance through the Ukraine, resumed the march toward Moscow, ultimately coming in spite of appearance 15 miles of the Soviet capital before the Soviets greatest ally came to their aid- the harsh Russian winter. As had been the vitrine for Napoleon more than a hundred years earlier, the Russian winter proved disastrous to the unrehearsed German troops. Expecting a quick victory, the German army had not bothered to supply its men with winter uniforms, and as the snows set in many found themselves facing temperatures well below zero corroding little more than light cotton summer clothing.Frostbite, pneumonia and other side effects of the horrendous frigid mercilessly ate away at the German divisions, which were already weakened by months of hard fighting. To organise matters worse the cold prevented use of German tanks in many instances, which froze solid in the fields, and high winter winds and snow flurries grounded the Luftwaffe, preventing air support. The Soviets in contrast, well accustomed and prepared for the hardships of winter, took the opportunity to launch a large counter attack which robbed the Germans of most of their earlier gains, pushing them back over 200 miles and removing the pressure on Moscow.Never again would the Germans make it so deep into Russian territory, though the war continued on and countless more men would die in the years to come. The failure of Operation Barbarossa proved disastrous to Hitlers Reich, which lost huge numbers of valuable and experienced troops and vast amounts of material that would turn out proved invaluable to them later in the war. They also awoke the military beast that was Soviet Russia and forced themselves to actively wage war on two fronts, a strain that would eventually prove too a lot for Germany as Allied efforts redoubled in the west with the entrance of the United States into the conflict.
Saturday, April 6, 2019
Effective Retail Signage Essay Example for Free
Effective Retail Signage EssayEffective Retail Signage In this sidereal day and age of modern computers, ink jet printers and desktop publishing programs, I am still astonish to see repositing owners that put little effort in to producing quality signage for their stores. Signage is one of the most of the essence(p) ways to convey your message to your customers. Your store name, promotions, pricing, and product information may all be conveyed finished signage. Are you getting these messages across effectively? As a customer base on ballss by your store, you have close to 3 seconds to let them know what they lead find inside. What message are you sending?Place it where it go forth catch your customers attention, but will not block essential elements of your store. Think about how customers approach your store. If customers walk by your store, but your store name is only placed high up on your store front, facing the street, how will they see it? You also consume to repea t the name on the door or window, and perhaps hanging from an awning or on a sandwich board on the sidewalk. pull ahead sure signs dont block traffic flow, displays, or the regard of the interior of your store. Window signage may not be visible to customers for other reasons that you do not realize.Is there a parking meter blocking the view of your window? What about a loading zone where delivery trucks park for a large division of the day, obscuring part of your store from view? Check for reflections on the window that make your interior signage invisible during the day. Youll need to check this at various times of the day to find out what happens to the unused and reflections depending on the line of the sun. You can improve the visibility of your signage by improving the display lighting inside, and by using light colors in your windows.Light colored signage will stand out, while dark colors will recede and virtually disappear behind reflections on the glass. After placing y our signs, double check how they look from a customers point of view. Step back down and approach the store as a visitor. Walk from front to back and look at all your signage critically and reposition as necessary. The simpler you keep your signage the better. Reduce visual clutter, and center on getting your most important message across to your customer. You will attract more walk-by traffic, and exclude confusing your customer. Your sales should increase as a result.
Friday, April 5, 2019
Industrial regulation Essay Example for Free
Industrial regulation EssayIndustrial regulation is g everywherenment imposed regulation of an entire industry in order to monitor prices and products provided to the public. Industrial regulation exists to forefend overpricing, lack of opposition and the overall taking advantage of consumers. The intended impact on the securities industrys is to promote competition and economic efficiency. Industrial regulation also intends that monopolies and oligopolies do not control the entire market, charging high prices and providing fewer and inferior products, which in turn harms consumers and society (McConnell, Brue, Flynn et al, 2011, pg. 382). These regulations reduce the market power of monopolies, therefore allowing entry into the market by the competition which then allows for substitute products and price competition. It also reduces the power of oligopolies and increases market competition and prevents collusion. The antitrust laws also help anti competition and price fix ing by not allowing monopolies to develop.Social ordination is government imposed restrictions on corporate behavior to avoid unwanted behavior such as pollution or dangerous work situations. Social regulation exists to protect society by maintaining safer products, lessen pollution, improving work conditions and creating greater equality of economic opportunity, otherwise considered to improve our way of life. A vast majority of employers and also employees are affected by social regulation. Employers are required not to divide in hiring practices, allowing more opportunities to various groups of people including people with disabilities. Also, employers must provide safe working conditions as stating in OSHA (The Occupational Regulation 3 Safety and Health garbage disposal).This is maintained by requiring employees to watch gumshoe videos and practice safety procedures. To be compliant, employers are required to spend money on training materials, clipping and manpower enforci ng anti-discrimination and safety protocols. vivid monopolies are entities that exist due to being more cost good and providing lower cost services or goods to consumers because of economies of scale. Due to the size of the entity, fixed costs spread over more units of output, leading to lower variable costs. One example would be our local utilities, where the single cockeyed can provide the entire market supply of electric carity therefore competition is uneconomical (McConnell, Brue, Flynn et al, 201, pg. 382.)Natural monopolies are formed by the government, naturally or by acquisitions. Natural monopolies should exist in just about locales and industries because it would be cost efficient for the consumer. It was would not be efficient for a new electric fraternity to come and spend a lot of capitol, creating new power lines, buildings, etc. and then charge higher(prenominal) costs to consumers to cover the initial cost. According to economic theory natural monopoly is opt imal regulation, that is, how a blotto regulates to produce and price optimally for consumers. D. Four major pieces of Antitrust Laws are1. The Sherman strike of 1890 which lays out two ideas. First, any trust, conspiracy, or restraint in trade or commerce is declared illegal. Second, anyone found vile of monopolizing shall be found guilty of a felony. This act is designed to curb monopolization and anti-competition.Regulation 4 2. The Clayton Act of 1914 Price discrimination is deemed illegal when it reduces competition and is based on costs differences. It also prohibits ligature contracts, acquisition of stocks from competing corporations and directors of one corporation cannot be board member of a competing firm. 3. The Federal Trade fit (FTC) Act of 1914 Has responsibility to enforce antitrust laws by investigating unfair competitive practices. The FTC can output cease-and-desist orders when unfair methods of competition are found. 4. The Wheeler-Lea Act of 1938 Gives the FTC additional reasonabilitys to protect the public from false advertising, naturalized the FTC as an independent agency and made unfair and deceptive sales practices illegal. 5. Celler-Kefauver Act Amended the Clayton Act by prohibiting anti-competitive mergers by acquiring the competitions stock. Previously purchasing a firms physical assets was a way to acquire a competitive firm. E. Three Industrial Regulatory cathexiss are1. The Federal vitality Regulatory Commission which regulates the transmission of natural gas, oil and electricity, including the wholesale sale of electricity and gas. The FERC reviews mergers and acquisitions by electric companies, regulates the sale of wholesale electricity and gas, regulates the transportation of oil by channel, approves applications for interstate natural gas pipeline and storage facilities. The FERC also licenses and inspects hydroelectric projects. 2. The Federal Communications Commission regulates interstates and international com munications by radio, television, wire, artificial satellite and cable.The FCC processes Regulation 5 applications for licensing and filings, analyzes complaints and conducts investigations against the Communications Act of 1934. It also develops and implements regulative programs and educates and informs consumers about telecommunication goods and services. 3. State everyday Utility Commission which regulates the public utilities by state ensures fair, just and reasonable rates. The CPUC develops and implements policies to promote competition in communications division, represents the commission before the United State Congress and federal agencies. It also provides information and assistant to the general public. One division oversees the safety of electric and communication facilities. F. Five main federal regulatory commissions are1. The Food and Drug Administration which protects public health by assuring safety of drugs, vaccines, medical exam devices, cosmetics and food. They intend to lessen the risk of unsafe products for everyone. 2. The Equal Opportunity Commission enforces laws making it illegal to withdraw and applies to all hiring, firing, promotions, harassment, training, wages and benefits. This allows everyone a fair chance at employment. 3. The Occupational Safety and Health Administration assure safe and healthy working conditions for all men and women and were created to improve working conditions. 4. The Environmental rampart Agency protects the air, water and noise pollution and was created to protect the environment and therefore human health. 5. The Consumer Products Safety Commission ensures the safety of consumer products by helping protect consumers from the risks of product incidents.Regulation 6 REFERENCESMcConnell, C., Brue, S., Flynn, S., et al, S. (2011).Economics. (19e ed.).New York McGraw-Hill%2FIrwin.
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