U.S. Economy
  
industry accounted for about 11.1 percent of  the  overall  annual  value 
added by manufacturing. Texas  and  Louisiana  are  leaders  in  chemical 
manufacturing. The petroleum and natural gas produced and refined in both 
states are basic  raw  materials  used  in  manufacturing  many  chemical 
products. 
Industrial machinery accounted for 10.7 percent of the yearly value added 
by manufacture. Industrial machinery includes  engines,  farm  equipment, 
various kinds of construction  machinery,  computers,  and  refrigeration 
equipment. California led  all  states  in  the  annual  value  added  by 
industrial machinery, followed by Illinois, Ohio, and Michigan. 
Factories in the United States  build  millions  of  computers,  and  the 
United States occupies second place in the world  in  the  production  of 
electronic  components  (semiconductors,  microprocessors,  and  computer 
equipment). Electronic equipment accounted for 10.5 percent of the yearly 
value added by manufacturing, and it  was  one  of  the  fastest  growing 
manufacturing sectors during the 1990s;  production  of  electronics  and 
electric equipment increased by 77  percent  from  1987  to  1994.  High- 
technology research and  production  facilities  have  developed  in  the 
Silicon  Valley  of  California,  south  of  San  Francisco;   the   area 
surrounding Boston; the Research Triangle of Raleigh,  Chapel  Hill,  and 
Durham in North Carolina; and the area around Austin, Texas. In addition, 
the United States has world leadership in the development and  production 
of computer software. Leading software producers  are  located  in  areas 
around Seattle, Washington; Boston,  Massachusetts;  and  San  Francisco, 
California. 
Food processing accounted for about 10.2 percent of  the  overall  annual 
value added by manufacturing. Food processing is an important industry in 
several states noted for the production of food crops and  livestock,  or 
both. California has a large fruit-  and  vegetable-processing  industry. 
Meat-packing is important to agriculture in Illinois and dairy processing 
is a large industry in Wisconsin. 
Transportation equipment  includes  passenger  cars,  trucks,  airplanes, 
space vehicles, ships and boats, and railroad  equipment.  This  category 
accounted for 10.1 percent of the yearly value  added  by  manufacturing. 
Michigan, with its huge automobile industry, is  a  leading  producer  of 
transportation equipment. 
The manufacture of fabricated metal and primary metal is concentrated  in 
the nation’s industrial core region. Iron  ore  from  the  Lake  Superior 
district, plus  that  imported  from  Canada  and  other  countries,  and 
Appalachian coal are the basis for  a  large  iron  and  steel  industry. 
Pennsylvania, Ohio, Indiana, Illinois, and Michigan are leading states in 
the value of primary metal output. The fabricated metal  industry,  which 
includes the manufacture of cans  and  other  containers,  hardware,  and 
metal forgings and stampings,  is  important  in  the  same  states.  The 
primary metals industry of these states provides the basic raw materials, 
especially steel, that are used in making metal products. 
Printing  and  publishing  is  a  widespread  industry,  with  newspapers 
published throughout the country.  New  York,  with  its  book-publishing 
industry,  is  the  leading  state,   but   California,   Illinois,   and 
Pennsylvania also have sizable printing and publishing industries. 
The manufacture  of  paper  products  is  important  in  several  states, 
particularly those with large timber resources, especially softwood trees 
used to  make  most  paper.  The  manufacture  of  paper  and  paperboard 
contributes  significantly  to  the  economies  of  Wisconsin,   Alabama, 
Georgia, Washington, New York, Maine, and Pennsylvania. 
Other major  U.S.  manufactures  include  textiles,  clothing,  precision 
instruments, lumber, furniture,  tobacco  products,  leather  goods,  and 
stone, clay, and glass items. 
      B2    Energy Production   
The energy to  power  the  nation's  economy—to  provide  fuels  for  its 
vehicles and furnaces and electricity for its machinery and appliances—is 
derived primarily from petroleum, natural  gas,  and  coal.  Measured  in 
terms  of  heat-producing  capacity  (British  thermal  units,  or  Btu), 
petroleum provides 39 percent of the total energy consumed in the  United 
States. It supplies nearly all of the energy used to power  the  nation’s 
transportation system and heats millions of houses and factories. 
Natural gas is the source of 24 percent  of  the  energy  consumed.  Many 
industrial plants use natural gas for heat and power, and several million 
households burn it for heating and cooking. Coal provides 22  percent  of 
the energy consumed. Its major uses are in the generation of electricity, 
which uses more than three-fourths of all the coal consumed, and  in  the 
manufacture of steel. 
Waterpower generates 4 to 5 percent of the nation’s energy,  and  nuclear 
power supplies about 10 percent. Both  are  employed  mainly  to  produce 
electricity for residential and industrial use. Nuclear energy  has  been 
viewed as an important alternative to  expensive  petroleum  and  natural 
gas,  but  its  development  has  proceeded  somewhat  more  slowly  than 
originally anticipated. People are reluctant to live near nuclear  plants 
for fear of a  radiation-releasing  accident.  Another  obstacle  to  the 
expansion of nuclear power use is that it is very expensive to dispose of 
radioactive material  used  to  power  the  plants.  These  nuclear  fuel 
materials remain radioactive for thousands of years and pose health risks 
if they are not properly contained. 
Some 33 percent of the energy consumed in the United States  is  used  in 
the generation of electricity. In 1999 the nation’s generating plants had 
a total  installed  capacity  of  728,259  megawatts  and  produced  3.62 
trillion kilowatt-hours of electricity. Coal is the most common fuel used 
by  electric  power  plants,  and  57  percent  of  the  nation’s  yearly 
electricity is generated in coal-fired plants. The states  producing  the 
most coal-generated electricity are Ohio, Texas,  Indiana,  Pennsylvania, 
Illinois, West Virginia, Kentucky, and Georgia. 
Natural gas accounts for 9  percent  of  the  electricity  produced,  and 
refined  petroleum  for  2  percent.  The  states  producing   the   most 
electricity from natural gas are Texas and California. Refined  petroleum 
is especially important in Florida,  New  York,  and  Massachusetts.  The 
leading producers of hydroelectricity are Washington, Oregon,  New  York, 
and California. Illinois, Pennsylvania, South  Carolina,  and  California 
have the largest nuclear power industries. 
Petroleum is a key resource for an American lifestyle based on  extensive 
use of private automobiles and trucks for commerce and businesses.  Since 
1947, when the United  States  became  a  net  importer  of  oil,  annual 
domestic production has not been enough to meet the demands of the highly 
mobile American society. 
In 1970 domestic crude-oil  production  reached  a  record  high  of  3.5 
billion barrels, but this had to be supplemented by imports amounting  to 
12 percent of the nation’s overall crude oil supply. Most Americans  were 
unaware of the dependence of the country on foreign  petroleum  until  an 
oil embargo imposed by some Middle Eastern nations in 1973 and  1974  led 
to government price ceilings for  gasoline  and  other  energy  products, 
which in turn led to shortages. In 1973 the nation  imported  about  one- 
fourth of its total supply of crude oil. Imports continued to rise  until 
1977, when about half of the crude and refined oil supply  was  imported. 
Imports then declined for a  time,  largely  because  energy-conservation 
measures were introduced and because other domestic energy  sources  such 
as coal were used increasingly. As of 1997, however, 47  percent  of  the 
crude oil needs of the United States were  met  by  net  imports.  Energy 
Supply, World. 
The United States consumes 25 percent of the  world’s  energy,  far  more 
than any other country, despite having less than 5 percent of the world’s 
population. The United States also produces a disproportionate  share  of 
the world’s total output of goods and services, which is the main  reason 
the nation consumes so much energy. In addition, the U.S.  population  is 
spread over a  larger  area  than  are  the  populations  in  many  other 
industrialized nations, such  as  Japan  and  the  countries  of  Western 
Europe. This lower population density in the United States results  in  a 
greater consumption of energy for transportation, as truck,  trains,  and 
planes are needed to move goods and  people  to  the  far-flung  American 
citizenry. 
As a result of the nation’s high energy consumption,  the  United  States 
accounts for nearly 20 percent of  the  global  emissions  of  greenhouse 
gases. These gases—carbon dioxide, methane, and oxides of nitrogen—result 
from the burning of fossil fuels, and they can have a harmful  effect  on 
the environment. C     Service and Commerce Sector   
By far the  largest  sector  of  the  economy  in  terms  of  output  and 
employment is the service and commerce sector. This sector  grew  rapidly 
during the last part of the 20th century, creating many new jobs and more 
than offsetting the slight loss of jobs in manufacturing  industries.  In 
1998 commerce and service industries generated 72 percent of the GDP  and 
employed 75 percent of  the  U.S.  workforce.  Most  of  these  jobs  are 
classified as white collar, and many  require  advanced  education.  They 
include many high-paying  jobs  in  financing,  banking,  education,  and 
health services, as well as lower-paying positions  that  require  little 
educational background, such as retail store clerks, janitors, and  fast- 
food restaurant workers. 
      C1    Service Industries  The service sector is extremely  diverse. 
It includes an assortment of private businesses and  government  agencies 
that provide a wide spectrum of services to  the  U.S.  public.  Services 
industries can be very different from each other,  ranging  from  health- 
care providers to vacation resorts to automobile repair  shops.  Although 
it would be almost impossible to list  every  kind  of  service  industry 
operating in the United States, many of these businesses fall into one of 
several large service categories. 
      C1a   Banking and Financial Services   
In 1995 the U.S. financial market had a total  of  628,500  institutions, 
which  employed  7.0  million   people.   These   institutions   included 
investment, commercial, and savings banks; credit unions; mortgage banks; 
insurance companies; mutual funds;  real  estate  agencies;  and  various 
holdings and trusts. 
Banks play a central role in any economy since they act as intermediaries 
in the flow of money. They collect deposits and distribute them as loans, 
allowing depositors to save for future consumption and allowing borrowers 
to invest. In 1998 the United States had 10,481 insured banks and savings 
institutions with a total of 84,123 banking offices. Because  of  mergers 
and closures, the number of banks steadily  declined  in  the  1980s  and 
1990s while the number of bank  offices  increased.  Combined  assets  of 
insured banks and savings institutions totaled $5.44 trillion in 1998. 
Banking in the 1990s was a highly competitive business, as banks  offered 
a variety of services to attract customers and sought to stem the flow of 
investors to brokerage houses and insurance firms.  Large  banks  in  the 
United States, in terms of assets, include Chase  Manhattan  Corporation, 
Citibank, Morgan Guaranty Trust, and Bankers Trust, all headquartered  in 
New York City; Bank of  America,  headquartered  in  San  Francisco;  and 
NationsBank, headquartered in Charlotte, North Carolina. 
In 1998 the United States had 1,687 savings and loan associations (SLAs), 
with combined assets of $1.1 trillion. SLAs are similar to banks, in that 
they accept deposits from customers, but  SLAs  focus  primarily  on  the 
housing and building industries by  making  loans  to  home  buyers.  The 
industry was substantially restructured in the late 1980s and early 1990s 
after some prominent SLAs became insolvent  largely  because  of  falling 
real estate prices in some parts of the country. 
In addition, a host of other  professions  offer  financial  services  to 
individuals and corporations. Insurance companies  provide  insurance  as 
well as a variety of other services, including deposit accounts,  pension 
management, mutual funds, and other investments. Stockbrokers, investment 
experts, pension managers,  and  personal  financial  consultants  advise 
consumers on investing money. In addition,  corporate  finance  managers, 
accountants,  and  tax  consultants  make  recommendations  on  financial 
planning to businesses and individuals. 
      C1b   Travel and Tourism   
One of the largest service industries in the United States is travel  and 
tourism. In 1997, individual U.S. citizens took 1.3 billion trips  within 
the  United  States  to  destinations  that  were  at  least  100   miles 
(equivalent to 160 km) from home. In  increasing  numbers,  domestic  and 
foreign travelers are visiting theme parks, natural wonders,  and  points 
of interest in major cities, and the convention business is booming.  New 
York City is a popular destination, and tourism  is  a  mainstay  of  the 
economies of California, Florida, and Hawaii. 
In recent decades, visitors from overseas  have  become  an  increasingly 
important part of the U.S. tourism business. In 1970  about  2.3  million 
overseas visitors came to the United States, spending  $889  million.  By 
1997 the number of overseas visitors—chiefly from western Europe,  Japan, 
Latin America, and the Caribbean—was 48  million.  Millions  of  visitors 
from Canada and Mexico also cross the border every year. Estimated annual 
expenditures in the  United  States  by  Canadian  travelers  totaled  $6 
billion, and spending by Mexicans was $5 billion. 
America’s historic sites and national parks draw many visitors. In  1998, 
287 million visits were made to the more than 350 areas  administered  by 
the National Park  Service.  Millions  of  people  each  year  visit  the 
national monuments, buildings, and museums in the Washington, D.C., area. 
More than 14 million visits are made annually  to  Golden  Gate  National 
Recreation Area in the San Francisco region. More than 19 million  people 
per year travel on the Blue Ridge Parkway in North Carolina and Virginia, 
and about 6 million visit  the  Natchez  Trace  Parkway  in  Mississippi, 
Alabama, and Tennessee. Located within a day’s drive from most  parts  of 
the eastern United States, Great Smoky Mountains  National  Park  is  the 
most popular national park in the  United  States,  receiving  nearly  10 
million visitors annually. 
      C1c   Transportation    
Transportation-related businesses are an important part  of  the  service 
industry. Trucks, railroads, and ships transport goods to markets  across 
the country. Commercial airlines, railroads,  bus  companies,  and  taxis 
move tourists and  commuters  to  their  destinations.  The  U.S.  Postal 
Service and a number of private carriers deliver goods as well as mail to 
consumers. The U.S. transportation network spreads into all  sections  of 
the country, but the web of railroads and highways is much denser in  the 
eastern half of the United States, where it serves the  nation’s  largest 
urban, industrial, and population concentrations. 
As of 1996 the  10  largest  railroad  companies  in  the  United  States 
operated 72 percent of tracks. Takeovers  and  mergers  among  the  major 
private railroad companies were common during the 1980s and 1990s. Amtrak 
(the National Railroad Passenger  Corporation),  a  federally  subsidized 
organization, operates almost all the intercity passenger trains  in  the 
United States. It carried 20.2 million passengers in 1997. Although  rail 
passenger travel has declined in importance during the 20th century, some 
U.S. cities  still  maintain  extensive  subways  or  commuter  railways, 
including New York City, Washington, D.C., Chicago, and the San Francisco- 
Oakland area of California. 
During the early decades of the 20th  century,  motor  vehicle  transport 
developed as a serious competitor of the railroads, both  for  passengers 
and freight. Federal aid to states for highway  construction  began  with 
the passage of the Federal-Aid Road Act of 1916. 
The federal aid program was greatly expanded in 1956 when the  government 
began an ambitious expansion of the Interstate Highway System, a  74,165- 
km (46,084-mi) network  of  limited-access  highways  that  connects  the 
nation’s  principal  cities.  This  carefully  designed  system   enables 
motorists  to  drive  across  the   country   without   encountering   an 
intersection or traffic signal. It carries about 20 percent of U.S. motor- 
vehicle traffic, though it accounts for just over 1 percent of U.S. roads 
and streets. The system is designed for  safe,  efficient  driving,  with 
gentle curves, easy grades and long sight distances. Entering and exiting 
the highway system is permitted only at planned interchanges. 
Air transport began to compete with  other  modes  of  transport  in  the 
United States after World War I (1914-1918). The first commercial flights 
in the United States were made in 1918 and carried small amounts of mail. 
Passenger service began to gain importance in the  late  1920s,  but  air 
transport did not become a leading mode of travel  until  the  advent  of 
commercial jet craft after World War II. By the 1990s a growing number of 
Americans flew for personal and business travel, in part because  of  the 
need to cover long distances and in part because  they  like  to  get  to 
their destinations quickly. In 1997 airlines in the United States carried 
598.1 million  passengers,  the  vast  majority  of  whom  were  domestic 
travelers. 
By the end of the 20th century,  large  and  small  airports  across  the 
nation formed  a  network  providing  air  transportation  to  individual 
travelers. The nation had 5,129 public and  13,263  private  airports  in 
1996. The largest airports in the United States by passenger arrivals and 
departures are William B. Hartsfield International Airport near  Atlanta, 
Georgia;  Chicago-O’Hare International Airport in  Illinois;  Dallas-Fort 
Worth  Airport  in  Texas;  and  Los  Angeles  International  Airport  in 
California. 
The United States has a relatively small commercial  shipping  fleet.  In 
1998 only 473 vessels of 1,000 gross tons and larger were  registered  in 
the United States. Only 56 percent were in use;  most  of  the  remainder 
formed part of a government-owned military reserve fleet.  However,  many 
American ship owners register their vessels in foreign countries such  as 
Liberia and Panama, where crew wages,  taxes,  and  operating  costs  are 
lower. 
In terms of the number of ships docking, New Orleans, Louisiana,  is  the 
busiest port in the nation; each year it handles more than 6,000 vessels. 
Other leading ports include Los Angeles-Long Beach, California;  Houston, 
Texas; New York, New  York;  San  Francisco-Oakland,  California;  Miami, 
Florida; and Philadelphia, Pennsylvania. Crude petroleum accounts for  22 
percent of  the  waterborne  tonnage  of  the  United  States.  Petroleum 
products make up 18 percent. Coal  accounts  for  14  percent,  and  farm 
products for 14 percent. 
The  inland  waterway  network  of  the  United  States  has  three  main 
components—the Mississippi River system, the Great Lakes, and the coastal 
waterways. Some 66 percent of the annual water freight traffic is on  the 
Mississippi River and its tributaries, 17 percent is on the Great  Lakes, 
and  most  of  the  remainder  is  on  the  coastal  waterways.  A  major 
thoroughfare of the coastal waterways is  the  Intracoastal  Waterway,  a 
navigable, toll-free shipping route extending for about 1,740  km  (about 
1,080 mi) along the Atlantic Coast and for about 1,770  km  (about  1,100 
mi) along the Gulf of Mexico coast. About 45 percent of the total  annual 
traffic on  all  coastal  waterways  travels  on  the  Gulf  Intracoastal 
Waterway, about 30 percent is on the Atlantic Intracoastal Waterway,  and 
about 25 percent is on Pacific Coast waterways. 
Most goods in the United States  travel  by  railroad  and  truck,  which 
compete vigorously for freight transport. In  1996,  38  percent  of  all 
United States freight moved by rail and  about  27  percent  traveled  by 
truck. However, other modes of transportation more easily handle  special 
freight items. An additional 20 percent of all freight, by volume,  moved 
through pipelines, mainly oil and natural gas  pipelines  originating  in 
Texas and Louisiana with  destinations  in  the  Midwest  and  Northeast. 
Another 16  percent,  mainly  bulk  commodities  like  coal,  grain,  and 
industrial limestone, moved by barge on inland waters. 
      C1d   Government    
Federal, state, and local  governments  provide  a  sizeable  portion  of 
services delivered in the nation. In 1996, government workers made  up  4 
percent  of  all  workers  and  together  produced  12  percent  of  GDP. 
Government services include  items  as  such  Social  Security  benefits, 
national defense, education, public welfare  programs,  law  enforcement, 
and the maintenance of transportation systems, libraries, hospitals,  and 
public parks. 
The government sector in the U.S. economy has increased  dramatically  in 
size during the 20th century. Federal revenues  grew  from  less  than  5 
percent of total GDP in the early 1930s to more than 20  percent  by  the 
late 1990s. Much of this growth took place during two  time  periods.  In 
the 1930s, following the economic downturn of the Great Depression,  U.S. 
president Franklin  D.  Roosevelt  instituted  sweeping  social  programs 
designed to provide basic financial security to individuals and families. 
Many of  these  programs,  such  as  unemployment  insurance  and  Social 
Security payments to retirees, have remained in place since then.  During 
the 1960s, U.S. president  Lyndon  B.  Johnson  instituted  a  series  of 
programs designed to fight poverty, promote education, and provide  basic 
medical coverage for less-affluent Americans.  In  addition,  during  the 
last half of the 20th  century,  government  expenditures  increased  for 
medical care and national defense as a result of technological  advances. 
The  cost  of  transportation  construction  also  rose  as  the  growing 
population demanded more and better highway systems. 
      C1e   Entertainment   
Another leading industry is the entertainment  business.  Motion  picture 
production has been centered in Hollywood, California,  since  the  early 
decades of the 20th century, when the  budding  motion  picture  industry 
discovered that the warm climate and sunny skies of  southern  California 
provided  ideal  conditions  for  film  production.  Other  entertainment 
industries include theater, which tends to be  located  in  larger  urban 
areas, particularly New York City, and television,  with  major  networks 
operating out of the New York City area. . 
      C2    Commerce  The 1990s have been years of  unrivaled  prosperity 
in the United States, with per capita GDP reaching $30,450 by 1998.  This 
high quality of life results partly from a rapid expansion of commerce in 
the years following World War II. 
      C2a   Domestic Trade    
Convenience is the key to consumer markets in the United States,  whether 
it is fast  food,  movie  theaters,  clothing,  or  any  of  hundreds  of 
different types of  consumer  goods.  Products  are  being  delivered  to 
citizens in a more efficient manner, as  industries  and  business  firms 
have decentralized to more closely fit the  distribution  of  population. 
Malls have sprung up in suburban areas, making  the  downtown  department 
store obsolete in many smaller cities. Manufacturers  also  market  their 
goods directly to customers in factory outlet  malls.  Prices  are  often 
lower in these outlets than in regular  retail  stores.  Customers  often 
travel hundreds of miles to shop at larger factory outlet malls.  At  the 
other end of the spectrum, mail order catalogs and  Internet  sites  have 
made it possible for many consumers to purchase  products  directly  from 
companies by mail or using personal computers. 
Wholesalers and retailers carry on most domestic commerce, or  trade,  in 
the United States. Wholesalers buy goods from  producers  and  sell  them 
mainly to retail business  firms.  Retailers  sell  goods  to  the  final 
consumer. Wholesale and retail trade together account for 16  percent  of 
annual GDP of the United States and employ 21 percent of the labor force. 
Wholesale  establishments  conducted  aggregate  annual  sales  of   $3.2 
trillion  in  1992.  The  leading  type  of  wholesale  business  is  the 
distribution of groceries and related products,  which  accounts  for  16 
percent of all wholesale activity. Next in rank are  motor-vehicle  parts 
and  supplies;  petroleum  and  petroleum  products;   professional   and 
commercial equipment, and machinery, equipment, and supplies. Wholesalers 
tend to be located in large urban centers that enable them to  distribute 
goods over wide sections of the nation. The New  York  City  metropolitan 
area is the country’s leading wholesale center. It serves as the national 
distribution center for a variety of  goods  and  as  the  main  regional 
center for the eastern United States.  Other  leading  wholesale  centers 
include Los Angeles, the main center for the western part of  the  United 
States;  Chicago;  San  Francisco;  Philadelphia;  Houston;  Dallas;  and 
Atlanta. 
In the mid-1990s retail establishments in the United States had aggregate 
annual sales of $2.2 trillion. Automotive dealers, with 23 percent of the 
total yearly retail trade, and food stores,  with  18  percent,  are  the 
leading retailers. The volume of retail sales is directly related to  the 
number of consumers in an area. The four leading states in annual  retail 
sales—California, Texas, Florida, and New York—are  also  the  four  most 
populous states. 
      C2b   Foreign Trade   
The United States is the  world’s  leading  trading  nation,  with  total 
merchandise exports amounting to $683  billion,  and  imports  to  $944.6 
billion.  Despite  its  massive  size,  large  population,  and  economic 
prosperity, the United States economy can provide  a  higher  quality  of 
life for consumers and more opportunity for businesses  by  trading  with 
other nations. Foreign, or international, trade enables the United States 
to specialize in producing those goods that it is  best  suited  to  make 
given its available  resources.  It  then  imports  products  that  other 
nations can make more efficiently, lowering prices  of  these  goods  for 
U.S. consumers. 
Nonagricultural products usually account for 90  percent  of  the  yearly 
value of exports, and agricultural products account for about 10 percent. 
Machinery and transportation equipment make up the leading categories  of 
exports, amounting together to one-third of the  value  of  all  exports. 
Other leading exports include electrical equipment, chemicals,  precision 
instruments, and food products. Beginning in the mid-1970s, the  nation’s 
imports of petroleum from the Middle East  and  manufactured  goods  from 
Canada and Asia (especially Japan) created a trade imbalance. 
      D     Information and Technology Sector   
By the end of the 20th century, many technological innovations  had  been 
introduced in the United States. Communications  satellites  orbited  the 
earth, computers performed day-to-day functions in many  businesses,  and 
the Internet provided instant information on most aspects  of  U.S.  life 
via  computer.  Developments  in  communications  and   technology   have 
transformed many aspects  of  daily  life  in  the  United  States,  from 
improvements in kitchen appliances to advances in  medical  treatment  to 
television broadcasts that are transmitted live via satellite from around 
the world. 
An increasing number of job opportunities are opening in  fields  related 
to  the  research  and  application  of  new  technology.  Entirely   new 
industries have emerged, such as companies that build the equipment  used 
in  space  explorations.  In  addition,   technology   has   opened   new 
opportunities for investment and employment  in  established  industries, 
such as those  that  manufacture  medicines  and  machines  used  in  the 
detection and treatment of diseases and individuals who market  and  sell 
products via the Internet. 
      D1    Communications   
The communications systems in  the  United  States  are  among  the  most 
developed  in  the  world.  Television,  radio,  newspapers,  and   other 
publications, provide most of the country’s news  and  entertainment.  On 
average there are two radios and one television set for every  person  in 
the United States. Although the economic  output  of  the  communications 
industry is relatively small, the industry has enormous importance to the 
political,  social,  and  intellectual  activity  of  the  nation.   Most 
communication media in the United States are privately owned and  operate 
independently of government control. 
The  Federal  Communications  Commission  must  license  all  radio   and 
television broadcasting stations in the United  States.  In  1997,  1,285 
television broadcasters were in  operation.  All  states  had  television 
stations, and more than 40 percent of the stations were  concentrated  in 
nine states: Texas, California, Florida, New  York,  Pennsylvania,  Ohio, 
Illinois, Michigan, and North Carolina. A rapidly growing number of  U.S. 
households  (estimated  at  64  million  in  1997)  subscribed  to  cable 
television. An estimated 98.3 percent of U.S. households had at least one 
television  set.  Telephone  communication  changed  as  cellular  phones 
allowed people to communicate via telephone while away from  their  homes 
and businesses or while traveling. There were 69 million cellular  phones 
in use in 1998. 
There were 1,489 daily newspapers published in the United States in 1998, 
8 fewer than the year before.  Daily  newspapers  had  a  circulation  of 
approximately 60.1 million copies in 1998. The top  daily  newspapers  in 
the United States according to circulation were the Wall  Street  Journal 
(published  in  New  York  City),  USA  Today  (published  in  Arlington, 
Virginia), the New York Times, and the Los Angeles  Times,  each  with  a 
circulation in excess of 1 million. Other leading newspapers included the 
Washington Post, the New  York  Daily  News,  the  Chicago  Tribune,  the 
Detroit Free Press, the San Francisco Chronicle, the  Chicago  Sun-Times, 
the Dallas Morning News, the Boston Globe, and the Philadelphia Inquirer. 
Nearly 21,300 periodicals were  published  in  1997.  These  ranged  from 
specialized journals reaching only a small  number  of  professionals  to 
major newsmagazines such as Time, with a circulation  of  4.1  million  a 
week, and Newsweek, with a circulation of 3.2 million a week. Other  mass 
publications with vast audiences included the weekly TV  Guide,  reaching 
13.2 million readers, and the monthly Reader’s Digest, with a circulation 
of 15.1 million copies. 
      D2    Technology 
 One of the most far-reaching technological advances  of  the  late  20th 
century took place in the field of computer science. Computers  developed 
from large, cumbersome, and expensive machines to  relatively  small  and 
affordable devices. The development of the personal computer (PC) in  the 
1970s made it possible for many individuals to own computers and  allowed 
even small businesses to use computer technology in their operations. The 
U.S. Bureau of the Census estimates that jobs in  the  computer  industry 
are growing at the fastest rate of any employment area, with job openings 
for computer specialists expected to double from 1996 to 2006. 
The Internet began in the 1960s  as  a  small  network  of  academic  and 
government  computers  primarily  involved  in  research  for  the   U.S. 
military. Originally limited to researchers at a handful of  universities 
and government  facilities,  the  Internet  quickly  became  a  worldwide 
network providing users with information  on  a  range  of  subjects  and 
allowing them to purchase goods directly from companies via computer.  By 
1999, 84 million U.S. citizens had access to  the  Internet  at  home  or 
work. More and more  Americans  were  paying  bills,  shopping,  ordering 
airline tickets, and purchasing stocks via computer over the Internet. 
This article was written by Michael Watts,  with  the  exception  of  the 
Chief Goods and Services of the U.S. Economy section, which he reviewed. 
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