Gross domestic product ( GDP ) is a monetary measure of the market value of all the final goods and services produced and rendered in a specific time period by a country or countries. GDP is often used to measure the economic health of a country or region. Several national and international economic organizations maintain definitions of GDP, such as the OECD and the International Monetary Fund .
67-415: Nan ( Thai : น่าน , pronounced [nâːn] ; Northern Thai : ᨶᩣ᩠᩵ᨶ ) is one of Thailand's seventy-seven provinces ( changwat ), and lies in upper northern Thailand . Neighboring provinces are (from south clockwise): Uttaradit , Phrae , and Phayao . To the north and east it borders Sainyabuli of Laos . The province is in the remote Nan River valley, surrounded by forested mountains,
134-411: A dialect continuum . Thai language is spoken by over 69 million people (2020). Moreover, most Thais in the northern (Lanna) and the northeastern (Isan) parts of the country today are bilingual speakers of Central Thai and their respective regional dialects because Central Thai is the language of television, education, news reporting, and all forms of media. A recent research found that the speakers of
201-565: A second language among the country's minority ethnic groups from the mid-late Ayutthaya period onward. Ethnic minorities today are predominantly bilingual, speaking Thai alongside their native language or dialect. Standard Thai is classified as one of the Chiang Saen languages—others being Northern Thai , Southern Thai and numerous smaller languages, which together with the Northwestern Tai and Lao-Phutai languages, form
268-468: A tropical savanna climate ( Köppen climate classification Aw ). Winters are quite dry and very warm. Temperatures rise until April, which is very hot with the average daily maximum at 37.0 °C (98.6 °F). The monsoon season runs from late April through October, with heavy rain and somewhat cooler temperatures during the day, although nights remain warm. For centuries Nan was an independent kingdom but, due to its remoteness, had few connections to
335-509: A base year. The result would be that the GDP in 2000 equals $ 300 million × 1 ⁄ 2 = $ 150 million , in 1990 monetary terms. We would see that the country's GDP had realistically increased 50 percent over that period, not 200 percent, as it might appear from the raw GDP data. The GDP adjusted for changes in money value in this way is called the real GDP . The factor used to convert GDP from current to constant values in this way
402-459: A big part of eastern Nan to French Indochina . In 1899 mueang Nan became part of the circle ( Monthon ) Tawan Tok Chiang Nuea (northwestern circle). In 1916 the northwestern circle was split and Nan was assigned to the circle Maharat . When the circles were abolished in 1932, the provinces including Nan became top-level subdivisions of Siam. Before the early-1980s, bandits as well as People's Liberation Army of Thailand (PLAT) guerrillas were
469-451: A big problem in the province, usually destroying highway construction overnight. With the help of the army and the more stable political system the province improved significantly, but is still a very rural and remote area. In August 2024, many provinces in the north experienced flooding. For Nan, it was considered the worst flooding in 100 years. Agriculture is the province's main industry, but tourism in 2016 contributed an estimated 30% to
536-498: A big volume", said a spokesman. In 2018 some 939,240 tourists visited Nan, up 4.4% year-on-year, contributing 2.6 billion baht in tourism income, a gain of 8.3%. Most visitors—97%—are Thais, of whom 62% were repeat visitors. Just 3% were foreign tourists from the US, France, China, Japan, and Laos. In the first eight months of 2019 Nan welcomed 643,129 tourists, up 0.2% year-on-year, generating 1.94 billion baht in income, up 2.1%. According to
603-416: A composite index covering all the eight key areas of human development. National Economic and Social Development Board (NESDB) has taken over this task since 2017. 18°46′04.07″N 100°46′56.74″E / 18.7677972°N 100.7824278°E / 18.7677972; 100.7824278 Thai language Thai , or Central Thai (historically Siamese ; Thai: ภาษาไทย ), is a Tai language of
670-518: A country becomes increasingly in debt, and spends large amounts of income servicing this debt this will be reflected in a decreased GNI but not a decreased GDP. Similarly, if a country sells off its resources to entities outside their country this will also be reflected over time in decreased GNI, but not decreased GDP. This would make the use of GDP more attractive for politicians in countries with increasing national debt and decreasing assets. Gross national income (GNI) equals GDP plus income receipts from
737-521: A country's borders, but by an enterprise owned by somebody outside the country, counts as part of its GDP but not its GNI; on the other hand, production by an enterprise located outside the country, but owned by one of its citizens, counts as part of its GNI but not its GDP. For example, the GNI of the US is the value of output produced by American-owned firms, regardless of where the firms are located. Similarly, if
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#1732772890365804-650: A country's citizens at home and abroad rather than its "resident institutional units" (see OECD definition above). The switch from GNP to GDP in the United States occurred in 1991. The role that measurements of GDP played in World War II was crucial to the subsequent political acceptance of GDP values as indicators of national development and progress. A crucial role was played here by the U.S. Department of Commerce under Milton Gilbert where ideas from Kuznets were embedded into institutions . The history of
871-406: A country's production has increased (or decreased, if the growth rate is negative) compared to the previous year, typically expressed as percentage change . The economic growth can be expressed as real GDP growth rate or real GDP per capita growth rate . GDP can be adjusted for population growth, also called Per-capita GDP or GDP per person . This measures the average production of a person in
938-533: A four-way distinction among stops and affricates . The maximal four-way occurred in labials ( /p pʰ b ʔb/ ) and denti-alveolars ( /t tʰ d ʔd/ ); the three-way distinction among velars ( /k kʰ ɡ/ ) and palatals ( /tɕ tɕʰ dʑ/ ), with the glottalized member of each set apparently missing. The major change between old and modern Thai was due to voicing distinction losses and the concomitant tone split . This may have happened between about 1300 and 1600 CE, possibly occurring at different times in different parts of
1005-530: A syllable that formerly began with a voiceless consonant (including glottalized stops). An additional complication is that formerly voiceless unaspirated stops/affricates (original /p t k tɕ ʔb ʔd/ ) also caused original tone 1 to lower, but had no such effect on original tones 2 or 3. The above consonant mergers and tone splits account for the complex relationship between spelling and sound in modern Thai. Modern "low"-class consonants were voiced in Old Thai, and
1072-700: A year during the Buddhist holy days of March. Hill tribes constitute 10.5 percent of the population. Inhabitants known as the T'in or Mal people speak a Northern Mon-Khmer or Khmuic language, T'in , an unknown language when Gérard Diffloth 's classifications were widely cited in a 1974 Encyclopædia Britannica article. The province is divided into 15 districts ( amphoe ). These are further divided into 99 subdistricts ( tambons ) and 848 villages ( mubans ). As of 26 November 2019 there are: one Nan Provincial Administration Organisation ( ongkan borihan suan changwat ) and 19 municipal ( thesaban ) areas in
1139-467: Is US$ 5,040,107.75 (in a million). Predictably, as a developed country, Japan has a higher GNI (by 182,779.46, in millions of USD), which is indicative that the production level in the country is higher than that of national production. On the other hand, the case with Armenia is the opposite, with GDP being lower than GNI by US$ 196.12 (in million). This demonstrates that countries receive investments and foreign aid from abroad. The Total income divided by
1206-443: Is a tonal and analytic language . Thai has a complex orthography and system of relational markers . Spoken Thai, depending on standard sociolinguistic factors such as age, gender, class, spatial proximity, and the urban/rural divide, is partly mutually intelligible with Lao , Isan , and some fellow Thai topolects . These languages are written with slightly different scripts, but are linguistically similar and effectively form
1273-425: Is also sometimes expressed as: The third way to estimate GDP is to calculate the sum of the final uses of goods and services (all uses except intermediate consumption) measured in purchasers' prices. Market goods that are produced are purchased by someone. In the case where a good is produced and unsold, the standard accounting convention is that the producer has bought the good from themselves. Therefore, measuring
1340-838: Is calculated this way it is sometimes called gross domestic income (GDI), or GDP (I). GDI should provide the same amount as the expenditure method described later. By definition, GDI is equal to GDP. In practice, however, measurement errors will make the two figures slightly off when reported by national statistical agencies. This method measures GDP by adding incomes that firms pay households for factors of production they hire – wages for labour, interest for capital, rent for land and profits for entrepreneurship. The US "National Income and Product Accounts" divide incomes into five categories: These five income components sum to net domestic income at factor cost. Two adjustments must be made to get GDP: Total income can be subdivided according to various schemes, leading to various formulae for GDP measured by
1407-474: Is called the GDP deflator . Unlike consumer price index , which measures inflation or deflation in the price of household consumer goods, the GDP deflator measures changes in the prices of all domestically produced goods and services in an economy including investment goods and government services, as well as household consumption goods. Real GDP can be used to calculate the GDP growth rate, which indicates how much
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#17327728903651474-473: Is contributed at each stage of production. This approach mirrors the OECD (Organisation for Economic Co-operation and Development) definition given above. Gross value added = gross value of output – value of intermediate consumption. Value of output = value of the total sales of goods and services plus the value of changes in the inventory. The sum of the gross value added in the various economic activities
1541-404: Is known as "GDP at factor cost". GDP at factor cost plus indirect taxes less subsidies on products = "GDP at producer price". For measuring the output of domestic product, economic activities (i.e. industries) are classified into various sectors. After classifying economic activities, the output of each sector is calculated by any of the following two methods: The value of output of all sectors
1608-587: Is that GDP defines its scope according to location, while GNI defines its scope according to ownership. In a global context, world GDP and world GNI are, therefore, equivalent terms. GDP is a product produced within a country's borders; GNI is product produced by enterprises owned by a country's citizens. The two would be the same if all of the productive enterprises in a country were owned by its own citizens and those citizens did not own productive enterprises in any other countries. In practice, however, foreign ownership makes GDP and GNI non-identical. Production within
1675-453: Is then added to get the gross value of output at factor cost. Subtracting each sector's intermediate consumption from gross output value gives the GVA (=GDP) at factor cost. Adding indirect tax minus subsidies to GVA (GDP) at factor cost gives the "GVA (GDP) at producer prices". The second way of estimating GDP is to use "the sum of primary incomes distributed by resident producer units". If GDP
1742-533: The Bangkok Post , the top two attractions in Nan province are Doi Samer Dao and Wat Phumin, a temple with many "local art masterpieces". Nan and government forestry officials are concerned about deforestation after hill tribes turned 1.5 million rai of forest land into cornfields. Nan Governor, Mr Suwat, says officials have attempted to persuade hill tribes to grow perennial plants such as cashew nuts and bamboo in
1809-617: The Human Development Index or Better Life Index , as better approaches to measuring the effect of the economy on human development and well being . William Petty came up with a concept of GDP, to calculate the tax burden , and argue landlords were unfairly taxed during warfare between the Dutch and the English between 1652 and 1674. Charles Davenant developed the method further in 1695. The modern concept of GDP
1876-633: The Kra–Dai language family spoken by the Central Thai , Mon , Lao Wiang , Phuan people in Central Thailand and the vast majority of Thai Chinese enclaves throughout the country. It is the sole official language of Thailand . Thai is the most spoken of over 60 languages of Thailand by both number of native and overall speakers. Over half of its vocabulary is derived from or borrowed from Pali , Sanskrit , Mon and Old Khmer . It
1943-466: The Northern Thai language (also known as Phasa Mueang or Kham Mueang) have become so few, as most people in northern Thailand now invariably speak Standard Thai, so that they are now using mostly Central Thai words and only seasoning their speech with the "Kham Mueang" accent. Standard Thai is based on the register of the educated classes by Central Thai and ethnic minorities in the area along
2010-673: The Phlueng Range in the western part and the Luang Prabang Range in the east. The highest mountain is the 2,079 meter high Phu Khe in Bo Kluea District , northeast of the city of Nan towards the border with Laos. The total forest area is 7,436 km (2,871 sq mi) or 61.3 percent of provincial area. There are seven national parks, along with three other national parks, make up region 13 (Phrae) of Thailand's protected areas. Nan province has
2077-521: The Southwestern branch of Tai languages . The Tai languages are a branch of the Kra–Dai language family , which encompasses a large number of indigenous languages spoken in an arc from Hainan and Guangxi south through Laos and Northern Vietnam to the Cambodian border. Standard Thai is the principal language of education and government and spoken throughout Thailand. The standard is based on
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2144-461: The 15th century, when Sukhothai declined in power, it became vassal of the kingdom of Lannathai . In 1443 King Inthakanthao of Nan Kingdom plotted to capture neighboring Phayao by asking King Tilokaraj to help him fight against Vietnamese troops attacking Nan, even though there was no such threat. King Inthakanthao killed the king of Phayao, however the troops of Tilokaraj then attacked Nan itself, and captured it in 1449. Between 1560-1785, Nan
2211-555: The Khmer system first before the Thai borrowed. Old Thai had a three-way tone distinction on "live syllables" (those not ending in a stop), with no possible distinction on "dead syllables" (those ending in a stop, i.e. either /p/, /t/, /k/ or the glottal stop that automatically closes syllables otherwise ending in a short vowel). There was a two-way voiced vs. voiceless distinction among all fricative and sonorant consonants, and up to
2278-491: The Thai-speaking area. All voiced–voiceless pairs of consonants lost the voicing distinction: However, in the process of these mergers, the former distinction of voice was transferred into a new set of tonal distinctions. In essence, every tone in Old Thai split into two new tones, with a lower-pitched tone corresponding to a syllable that formerly began with a voiced consonant, and a higher-pitched tone corresponding to
2345-427: The accounting year. ) So for example if a car manufacturer buys auto parts , assembles the car and sells it, only the final car sold is counted towards the GDP. Meanwhile, if a person buys replacement auto parts to install them on their car, those are counted towards the GDP. According to the U.S. Bureau of Economic Analysis, which is responsible for calculating the national accounts in the United States, "In general,
2412-481: The boundary between their lands. The ruler of Nan went there on a buffalo, while the ruler of Phrae went there on a horse. The provincial tree and provincial flower is the Orchid Tree ( Bauhinia variegata ). Hypsibarbus vernayi is the provincial aquatic life, what with they swim upstream to spawns in the water source in the forestland of Bo Kluea district. An unseen natural phenomenon that occurs only once
2479-540: The concept of GDP should be distinguished from the history of changes in many ways of estimating it. The value added by firms is relatively easy to calculate from their accounts, but the value added by the public sector , by financial industries, and by intangible asset creation is more complex. These activities are increasingly important in developed economies, and the international conventions governing their estimation and their inclusion or exclusion in GDP regularly change in an attempt to keep up with industrial advances. In
2546-401: The country. GDP per capita is often used as an indicator of living standards. The major advantage of GDP per capita as an indicator of the standard of living is that it is measured frequently, widely, and consistently. It is measured frequently in that most countries provide information on GDP every quarter, allowing trends to be seen quickly. It is measured widely in that some measure of GDP
2613-545: The dialect of the central Thai people, and it is written in the Thai script . Hlai languages Kam-Sui languages Kra languages Be language Northern Tai languages Central Tai languages Khamti language Tai Lue language Shan language others Northern Thai language Thai language Southern Thai language Tai Yo language Phuthai language Lao language (PDR Lao, Isan language ) Thai has undergone various historical sound changes. Some of
2680-420: The forest legally. "It's impossible to solve the deforestation problem without involving the hill tribes," he says. "We must give them a solution to live in the forest and protect nature at the same time." The provincial seal shows a Usuparatch bull carrying the stupa of Phrathat Chae Haeng. The buffalo dates back to a legend that the rulers of Nan and Phrae were brothers, and met at a mountain to decide about
2747-553: The income approach. A common one is: The sum of COE , GOS and GMI is called total factor income; it is the income of all of the factors of production in society. It measures the value of GDP at factor (basic) prices. The difference between basic prices and final prices (those used in the expenditure calculation) is the total taxes and subsidies that the government has levied or paid on that production. So adding taxes less subsidies on production and imports converts GDP(I) at factor cost to GDP(I) at final prices. Total factor income
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2814-443: The information required (especially information on expenditure and production by governments). The raw GDP figure as given by the equations above is called the nominal, historical, or current GDP. When one compares GDP figures from one year to another, it is desirable to compensate for changes in the value of money—for the effects of inflation or deflation. To make it more meaningful for year-to-year comparisons, it may be multiplied by
2881-684: The international market. Total GDP can also be broken down into the contribution of each industry or sector of the economy. GDP is often used as a metric for international comparisons as well as a broad measure of economic progress . It is often considered to be the world's most powerful statistical indicator of national development and progress. However, critics of the growth imperative often argue that GDP measures were never intended to measure progress, and leave out key other externalities , such as resource extraction , environmental impact and unpaid domestic work . Alternative economic indicators such as doughnut economics use other measures, such as
2948-528: The local patois as pronounced in Guangdong Ayutthaya , the old capital of Thailand from 1351 - 1767 A.D., was from the beginning a bilingual society, speaking Thai and Khmer . Bilingualism must have been strengthened and maintained for some time by the great number of Khmer-speaking captives the Thais took from Angkor Thom after their victories in 1369, 1388 and 1431. Gradually toward the end of
3015-551: The most significant changes occurred during the evolution from Old Thai to modern Thai. The Thai writing system has an eight-century history and many of these changes, especially in consonants and tones, are evidenced in the modern orthography . According to a Chinese source, during the Ming dynasty , Yingya Shenglan (1405–1433), Ma Huan reported on the language of the Xiānluó (暹羅) or Ayutthaya Kingdom, saying that it somewhat resembled
3082-550: The other kingdoms. The first kingdom around the city Mueang Pua (also known as Woranakorn ) was created in the late-13th century. Its rulers, the Phukha Dynasty , were related to the founders of Vientiane , however it became associated with the Sukhothai Kingdom as it was easier to reach from the south than from the east or west. In the 14th century the capital was moved to its present location at Nan . In
3149-415: The period, a language shift took place. Khmer fell out of use. Both Thai and Khmer descendants whose great-grand parents or earlier ancestors were bilingual came to use only Thai. In the process of language shift, an abundance of Khmer elements were transferred into Thai and permeated all aspects of the language. Consequently, the Thai of the late Ayutthaya Period which later became Ratanakosin or Bangkok Thai,
3216-543: The population is the Per capita income . The international standard for measuring GDP is contained in the book System of National Accounts (2008), which was prepared by representatives of the International Monetary Fund , European Union , Organisation for Economic Co-operation and Development , United Nations and World Bank . The publication is normally referred to as SNA2008 to distinguish it from
3283-430: The previous edition published in 1993 (SNA93) or 1968 (called SNA68) SNA2008 provides a set of rules and procedures for the measurement of national accounts. The standards are designed to be flexible, to allow for differences in local statistical needs and conditions. Within each country GDP is normally measured by a national government statistical agency, as private sector organizations normally do not have access to
3350-512: The products must be bought by somebody, therefore the value of the total product must be equal to people's total expenditures in buying things. The income approach works on the principle that the incomes of the productive factors ("producers", colloquially) must be equal to the value of their product, and determines GDP by finding the sum of all producers' incomes. Also known as the Value Added Approach, it calculates how much value
3417-527: The province. Nan has town ( thesaban mueang ) status. Further 18 subdistrict municipalities ( thesaban tambon ). The non-municipal areas are administered by 80 Subdistrict Administrative Organisations – SAO ( ongkan borihan suan tambon ). Since 2003, United Nations Development Programme (UNDP) in Thailand has tracked progress on human development at sub-national level using the Human achievement index (HAI),
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#17327728903653484-461: The provincial GDP . The number of hotel rooms in Nan has doubled to 4,000 in 2016. The Tourism Department says arrivals to Nan rose by 19% to 1.76 million in 2015, of which Thais numbered 1.44 million. Tourism revenue rose by 14% to 4.43 billion baht . The Tourism Authority of Thailand (TAT) expects tourist arrivals to Nan will rise by 10% to 1.94 million in 2016 as tourism revenue grows by 10% to 4.88 billion baht. "We want only quality tourists, not
3551-445: The ratio between the value of money in the year the GDP was measured and the value of money in a base year. For example, suppose a country's GDP in 1990 was $ 100 million and its GDP in 2000 was $ 300 million . Suppose also that inflation had halved the value of its currency over that period. To meaningfully compare its GDP in 2000 to its GDP in 1990, we could multiply the GDP in 2000 by one-half, to make it relative to 1990 as
3618-587: The rest of the world minus income payments to the rest of the world. In 1991, the United States switched from using GNP to using GDP as its primary measure of production. The relationship between United States GDP and GNP is shown in table 1.7.5 of the National Income and Product Accounts . Another example that amplifies the difference between GDP and GNI is the comparison of developed and developing country indicators. The GDP of Japan for 2020
3685-519: The ring surrounding the Metropolis . In addition to Central Thai, Thailand is home to other related Tai languages . Although most linguists classify these dialects as related but distinct languages, native speakers often identify them as regional variants or dialects of the "same" Thai language, or as "different kinds of Thai". As a dominant language in all aspects of society in Thailand, Thai initially saw gradual and later widespread adoption as
3752-492: The royal vocabulary according to their immediate environment. Thai and Pali, the latter from Theravada Buddhism, were added to the vocabulary. An investigation of the Ayutthaya Rajasap reveals that three languages, Thai, Khmer and Khmero-Indic were at work closely both in formulaic expressions and in normal discourse. In fact, Khmero-Indic may be classified in the same category as Khmer because Indic had been adapted to
3819-408: The same result. They are the production (or output or value added) approach, the income approach, and the speculated expenditure approach. It is representative of the total output and income within an economy. The most direct of the three is the production approach, which sums up the outputs of every class of enterprise to arrive at the total. The expenditure approach works on the principle that all of
3886-401: The source data for the expenditures components are considered more reliable than those for the income components [see income method, above]." Encyclopedia Britannica records an alternate way of measuring exports minus imports: notating it as the single variable NX. GDP can be contrasted with gross national product (GNP) or, as it is now known, gross national income (GNI). The difference
3953-535: The terminology "low" reflects the lower tone variants that resulted. Modern "mid"-class consonants were voiceless unaspirated stops or affricates in Old Thai—precisely the class that triggered lowering in original tone 1 but not tones 2 or 3. Modern "high"-class consonants were the remaining voiceless consonants in Old Thai (voiceless fricatives, voiceless sonorants, voiceless aspirated stops). The three most common tone "marks" (the lack of any tone mark, as well as
4020-401: The three tones of Old Thai were split have since merged into five in standard Thai, with the lower variant of former tone 2 merging with the higher variant of former tone 3, becoming the modern "falling" tone. หม ม หน น, ณ หญ ญ หง ง ป ผ พ, ภ บ ฏ, ต ฐ, ถ ท, ธ ฎ, ด จ ฉ ช GDP The ratio of GDP to
4087-536: The total expenditure used to buy things is a way of measuring production. This is known as the expenditure method of calculating GDP. GDP (Y) is the sum of consumption (C) , investment (I) , government expenditures (G) and net exports (X − M) . Here is a description of each GDP component: C , I , and G are expenditures on final goods and services; expenditures on intermediate goods and services do not count. (Intermediate goods and services are those used by businesses to produce other goods and services within
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#17327728903654154-439: The total population of the region is the GDP per capita and can approximate a concept of a standard of living . Nominal GDP does not reflect differences in the cost of living and the inflation rates of the countries; therefore, using a basis of GDP per capita at purchasing power parity (PPP) may be more useful when comparing living standards between nations, while nominal GDP is more useful comparing national economies on
4221-423: The two marks termed mai ek and mai tho ) represent the three tones of Old Thai, and the complex relationship between tone mark and actual tone is due to the various tonal changes since then. Since the tone split, the tones have changed in actual representation to the point that the former relationship between lower and higher tonal variants has been completely obscured. Furthermore, the six tones that resulted after
4288-473: The words of one academic economist, "The actual number for GDP is, therefore, the product of a vast patchwork of statistics and a complicated set of processes carried out on the raw data to fit them to the conceptual framework." China officially adopted GDP in 1993 as its indicator of economic performance. Previously, China had relied on a Marxist-inspired national accounting system. GDP can be determined in three ways, all of which should, theoretically, give
4355-453: Was a thorough mixture of Thai and Khmer. There were more Khmer words in use than Tai cognates. Khmer grammatical rules were used actively to coin new disyllabic and polysyllabic words and phrases. Khmer expressions, sayings, and proverbs were expressed in Thai through transference. Thais borrowed both the Royal vocabulary and rules to enlarge the vocabulary from Khmer. The Thais later developed
4422-539: Was colonized by Burma many times. Nan was also the abandoned city without people twice: first from 1704-1706, and later in 1778–1801. When Lannathai was under Burmese rule, Nan tried to liberate itself many times without success, which finally led to Burmese rule of Nan in 1714. In 1788 the Burmese rulers were finally driven out. Nan had to then accept new rulers from Siam. In 1893 after the Paknam crisis Siam had to give
4489-493: Was first developed by Simon Kuznets for a 1934 U.S. Congress report, where he warned against its use as a measure of welfare (see below under limitations and criticisms ). After the Bretton Woods Conference in 1944, GDP became the main tool for measuring a country's economy. At that time gross national product (GNP) was the preferred estimate, which differed from GDP in that it measured production by
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