FACULTY OF ECONOMIC AND MANAGEMENT SCIENCES DEPARTMENT OF ECONOMICS ECONOMICS 110 SEMESTER TEST 1

Transcription

1 FACULTY OF ECONOMIC AND MANAGEMENT SCIENCES DEPARTMENT OF ECONOMICS ECONOMICS 110 SEMESTER TEST 1 15 March 2013 Total: 30 marks Time: 75 minutes Examiners: Mr J van Rensburg Prof M Breitenbach Mr FJ Scholtz Mr G Kashalala Mr C Mwabutwa Mr L Stander Mrs S Kilambo External Examiner: Dr R Inglesi-Lotz ANSWER ALL THE QUESTIONS. PLEASE USE SIDE 1 OF THE ANSWER SHEET HANDED TO YOU TO RECORD YOUR ANSWERS. ENSURE THAT YOU USE THE CORRECT PROCEDURES TO COMPLETE THE ANSWER FORM AS CLEARLY ILLUSTRATED ON THE FORM. 1. Which of the following is a normative statement? A. An increase in the excise tax on beer will reduce its consumption. B. The failure rate on the November 1999 Economics 1 paper was 35%. C. The unemployment rate in South Africa decreased to 24.9 % in the fourth quarter of 2012 from 25.5 % in the third quarter of D. Alcohol consumption should be taxed more heavily than smoking. 2. Which of the following combinations of products A (Price R20) and B (Price R10) are unattainable given an income of R80? A. 3 of A and 2 of B B. 4 of A and 2 of B C. 1 of A and 1 of B D. 2 of A and 2 of B 3. Which of the following is not a factor that would cause the production possibility curve of South Africa to shift to the right? A. One million people decide to emmigrate to Nigeria. B. China donates irrigation and agricultural chemicals to South Africa that will increase its maize production by one million tonnes. C. South Africa makes a technological breakthrough in the development of an ipad app, which will reduce the amount of time that South Africans spend talking to their friends during work hours. D. The gold mining sector reaches an agreement whereby workers in the sector will earn double what they earn at present, on condition that they work twice as hard as they do at present. 1

2 4. Which of the following is correct? A. Because of scarcity, households must be provided with public goods to satisfy all their needs. B. Scarcity is brought about by exporting the majority of a country s production. C. Scarcity is only a problem faced byvery poor households as they usually have more wants than the rich. D. Scarcity arises because people have unlimited wants but resources are limited. 5. In the market system, which of the following statements are true? i. Pursuing self-interest and getting personal reward are all good for technological advances. ii. Advanced technology and methods are less important as it is always less efficient than labour. iii. The only way to avoid inefficiency is to avoid acquiring capital goods. iv. It is the market system and not an individual consumer who decides on issues such as what and how things ought to be produced in the economy. A. i and ii B. i and iv C. ii and iv D. ii, iii and iv 6. What is crucial in the determination of the types and quantities of goods to be produced in the market system? A. Entrepreneurs and business firms B. Command system C. Consumer sovereignty D. Wages and salaries for labour Taking the following scenario into consideration: Answer the question below 1) Free State has surplus maize and wants bananas. 2) KwaZulu-Natal has surplus bananas and wants grapes. 3) Western Cape has surplus grapes and wants maize. 7. On the basis of the above information it can be said that: A. no coincidence of wants exists between any two places. B. a coincidence of wants exists between Free State and Western Cape. C. a coincidence of wants exists between KwaZulu-Natal and Western Cape. D. a coincidence of wants exists between Free State and South Africa. 2

3 8. On the basis of the above information and assuming trade occurs between the three places we can expect: A. Western Cape to exchange grapes with KwaZulu-Natal and receive money in return. B. Western Cape to exchange grapes with Free State and receive money in return. C. KwaZulu-Natal to exchange bananas with Free State and receive maize in return. D. KwaZulu-Natal to trade bananas directly for Western Cape grapes. 9. Which one of the following is not a market failure? A. Externalities B. Under-utilisation of resources C. High prices D. Unemployment 10. Only one of the following actions will lead to a direct decrease in the quantity demanded of Monster energy drinks, ceteris paribus: A. The price of Red Bull decreases by nearly 50%. B. A lecturer in the Economics 110 class tells his class of 300 students about a rat tail which was discovered inside a tin of Monster energy drink. C. The increase in excise tax on beer leads to less people being able to afford Monster energy drink as a morning after drink. D. The managing director of Monster energy drinks SA announced that it will not engage in a price war with any other energy drink producer as its product is superior to any other similar product. In fact, he announced a price hike of 15% with immediate effect. 11. The shape of the production possibilities curve is concave to the origin because: A. the opportunity costs of allocating economic resources to alternative uses increase. B. the opportunity costs decline over time. C. the opportunity costs increase at first whereafter it declines as resources are reallocated. D. the opportunity costs of allocating economic resources to alternative uses decrease. 12. Self-interest is one of the fundamental building blocks of a market system. The pursuit of self-interest by economic decision-makers implies that they try to: A. exclusively achieve their own goals to maximise their utility and profit. B. achieve their own goals which usually requires delivering something of value to others. C. maximise the utility experienced by the lowest income earners in a society first. D. minimise the government intervention to correct market failures. 3

4 13. In the market of second-hand clothes classified as inferior goods, an increase in consumer income will result in : A. an increase in equilibrium quantity and a decrease in equilibrium price. B. a decrease in equilibrium price and quantity. C. an increase in equilibrium price and quantity. D. a decrease in equilibrium price and increase in equilibrium quantity. 14. Minimum wages are a prime example of: A. a market that functions according to market principles. B. a price floor where the minimum wage would be set below the prevailing market price. C. a price ceiling where the minimum wage would be set below the prevailing market price. D. a price floor where the minimum wage would be set above the prevailing market price. 15. Which of the following causes a shortage to become larger, ceteris paribus? A. An increase in price. B. An increase in supply. C. A decrease in demand. D. A decrease in price. 16. Consider the demand for DVDs in South Africa. The consumers tastes have changed and consumers now prefer Blu-rays instead of DVDs. The result of this will be a(n): A. decrease of the equilibrium price for DVDs. B. increase of the equilibrium quantity of DVDs. C. decrease of the equilibrium quantity of Blu-rays. D. decrease of the equilibrium price of Blu-rays. 17. The following graph shows the production possibilities curve for the production of milk and lactose-free cookies for a closed economy. The economy experiences an outbreak of mad cow disease and therefore has to reduce the amount of milk-producing cows, ceteris paribus. 4

5 Which of the answers depicts the situation? A. A to B. B. PPCx to PPC. C. PPC to PPCx. D. A to C. 18. The following table shows all available techniques for producing 20 units of a particular commodity: Resources Resource Possible production techniques Prices (R) #1 #2 #3 #4 #5 Land Labour Capital Entrepreneurship In view of the indicated resource prices, the economically most efficient production technique is technique(s): A. 1 B. 2 C. 3 D Refer to the diagram above. A price of R60 in this market will result in: A. equilibrium. B. a shortage of 100 units. C. a surplus of 50 units. D. a surplus of 100 units. 5

6 20. Assume that the graphs show a competitive market for the product stated in the question. P S P S P 2 E 2 P 1 E 1 P 1 E 1 P 2 E 2 D 1 D 2 D 2 D 1 0 Q 1 Q 2 Q 0 Q 2 Q 1 Q Graph/Grafiek A Graph/Grafiek B P S 1 S 2 P S 2 S 1 P 1 E 1 P 2 E 2 P 2 E 2 P 1 E 1 D 1 D 1 0 Q 1 Q 2 Q 0 Q 2 Q 1 Q Graph/Grafiek C Graph/Grafiek D Select the graph above that best shows the change to demand or supply in a particular market given the following situation: Considering the market for potatoes, the country experienced a long period of drought. A. Graph A. B. Graph B. C. Graph C. D. Graph D. 21. When product prices change, consumers are inclined to purchase larger amounts of the now cheaper products and less of the now more expensive products. This describes: A. the cost effect. B. the price effect. C. the income effect. D. the substitution effect. 6

7 22. When economists describe a market, they mean: A. a place where stocks and bonds are traded. B. information networks that allow individuals to keep in touch with each other. C. a hypothetical place where the production of goods and services takes place. D. a mechanism which coordinates actions of consumers and producers to establish equilibrium prices and quantities. 23. Allocative efficiency means that: A. the law of increasing opportunity costs has reached a maximum. B. the least costly methods are being used to produce a product. C. resources are being devoted to the production of products most desired by society. D. the amount of other products which must be sacrificed to obtain production of a given product at a minimum. 24. Which statement best illustrates the concept of diminishing marginal utility? A. If the price of hamburger declines, there will be a change in consumer tastes in favour of hamburger. B. A typical consumer will receive less satisfaction from consuming hamburgers than from consuming pork. C. A typical consumer will receive less satisfaction from consuming the fourth hamburger per week than the third hamburger per week. D. A decrease in the price of hamburgers will cause consumers to buy more hamburgers because they have, in effect, received an increase in income. 25. "In the maize market, demand often exceeds supply and supply sometimes exceeds demand." "The price of maize rises and falls in response to changes in supply and demand." In which of these two statements are the terms demand and supply being used correctly? A. In neither statement. B. In the second statement. C. In the first statement. D. In both statements. 26. Paul wants to buy a book. The economic perspective suggests that Paul will buy the book if: A. positive economics is more important than normative economics in the decision making. B. normative economics is more important than positive economics in the decision making. C. the marginal cost of the book is greater than its marginal benefit. D. the marginal benefit of the book is greater than the marginal cost. 7

8 27. Which is an illustration of a microeconomic question? A. What is the current national rate of unemployment? B. Is the economy experiencing a decline in the rate of inflation? C. Will a new type of television set increase the number of buyers? D. Is the production of goods and services in the economy greater this year than last year? 28. Assume the price of product Y (the quantity of which is on the vertical axis) is R15 and the price of product X (the quantity of which is on the horizontal axis) is R3. Also assume that money income is R60. The absolute value of the slope of the resulting budget line is: A. 5. B. 1/5. C. 4. D Consider the market for cars. Two events occurred simultaneously: (a) The price of petrol increased rapidly and (b) a negotiation between the employers and the union of workers at the automobile industry resulted in an agreement to increase the wages. Assuming that the change from (a) was greater than the change from (b), what will be the effect on equilibrium price and quantity? A. P decreases; Q decreases. B. P indeterminate; Q decreases. C. P increases; Q indeterminate. D. P decreases; Q increases. 30. Suppose you have a money income of R10 all of which you spend on Coke and popcorn. In the above diagram, the prices of Coke and popcorn respectively are: A. R0.5 and R1. B. R1 and R0.5. C. R1 and R2. D. R0.4 and R0.5. 8

9 FAKULTEIT EKONOMIESE EN BESTUURSWETENSKAPPE DEPARTEMENT EKONOMIE EKONOMIE 110 SEMESTERTOETS 1 15 Maart 2013 Totaal: 30 punte Tyd: 75 minute Eksaminatore: Mnr J van Rensburg Prof M Breitenbach Mnr FJ Scholtz Mnr G Kashalala Mnr C Mwabutwa Mnr L Stander Mev S Kilambo Eksterne Eksaminator: Dr R Inglesi-Lotz BEANTWOORD ALLE VRAE: GEBRUIK KANT 1 VAN DIE UITGEDEELDE ANTWOORDVORM OM U ANTWOORDE OP AAN TE DUI. MAAK ASSEBLIEF SEKER DAT U DIE KORREKTE PROSEDURE VOLG SOOS DUIDELIK OP DIE VORM GEïLLUSTREER WORD 1. Watter van die volgende stellings is 'n normatiewe stelling? A. 'n Styging in die aksynsbelasting op bier sal lei tot 'n afname in verbruik daarvan. B. Die druipsyfer van die November 1999 Ekonomie 1 vraestel, was 35%. C. Die werkloosheidssyfer in Suid-Afrika het gedaal tot 24.9% in die vierde kwartaal van 2012 vanaf 25.5% in die derde kwartaal van D. Alkoholverbruik behoort swaarder belas te word as rokery. 2. Watter van die volgende kombinasies van produkte A (Prys R20) en B (Prys R10) is onbereikbaar met 'n inkome van R80? A. 3 van A en 2 van B. B. 4 van A en 2 van B. C. 1 van A en 1 van B. D. 2 van A en 2 van B. 3. Watter van die volgende is nie 'n faktor wat die produksiemoontlikheidskromme na regs kan laat skuif nie? A. Een miljoen mense besluit om na Nigerië te emmigreer. B. China skenk besproeiings- en landbouchemikalië aan Suid-Afrika wat die mielieproduksie sal laat toeneem met een miljoen ton. C. Suid-Afrika maak 'n tegnologiese deurbraak in die ontwikkeling van 'n ipad toepassing, wat die aantal ure wat Suid-Afrikaners met hul vriende gesels tydens werksure, verminder. D. Die goudmynsektor bereik 'n ooreenkoms waarvolgens werkers in die sektor twee keer meer sal verdien as wat hulle tans verdien, op voorwaarde dat hulle dubbel so moet werk as wat hulle tans werk. 9

10 4. Watter een van die volgende stellings, is korrek? A. As gevolg van skaarsheid, moet huishoudings voorsien word van openbare goedere om aan hulle behoeftes te voorsien. B. Skaarsheid ontstaan deur die oorgrote meerderheid van 'n land se produksie uit te voer. C. Skaarsheid is slegs 'n probleem vir baie arm huishoudings omdat hulle gewoonlik meer behoeftes het as ryker huishoudings. D. Skaarsheid ontstaan omdat mense onbeperkte behoeftes het, maar hulpbronne beperk is. 5. In 'n markstelsel, watter een van die volgende stellings is waar? i. Om jou eie belang na te streef en persoonlike beloning te bekom is goed vir tegnologiese vordering. ii. Gevorderde tegnologie en metodes is minder belangrik omdat dit altyd minder doeltreffend is as arbeid. iii. Die enigste manier om ondoeltreffendheid te vermy, is om kapitaalgoedere te vermy. iv. Dit is die markstelsel, en nie die individuele verbuiker nie, wat oor kwessies soos wat en hoe om te produseer besluit. A. i en ii. B. i en iv. C. ii en iv. D. ii, iii en iv. 6. Wat is noodsaaklik in die bepaling van die tipe en hoeveelhede van goedere wat geproduseer word in die markstelsel? A. Entrepreneurs en besighede/firmas. B. Bevelstelsel. C. Verbuikersoewereiniteit. D. Lone en salarisse vir arbeid. Neem die volgende gegewens in ag, en antwoord die onderstaande vraag. 1) Vrystaat het oorskot mielies en wil piesangs hê. 2) KwaZulu-Natal het oorskot piesangs en wil druiwe hê. 3) Wes-Kaap het oorskot druiwe en wil mielies hê. 7. Op grond van die bostaande inligting, kan die volgende gesê word: A. geen ooreenstemming in behoeftes bestaan tussen enige twee plekke nie. B. 'n ooreenstemming van behoeftes bestaan tussen Vrystaat en Wes-Kaap. C. 'n ooreenstemming van behoeftes bestaan tussen KwaZulu-Natal en Wes-Kaap. D. 'n ooreenstemming van behoeftes bestaan tussen Vrystaat en Suid-Afrika. 10

11 8. Op grond van die bostaande inligting en indien handel vind wel plaas tussen die drie plekke, kan ons verwag dat: A. Wes-Kaap druiwe sal ruil met KwaZulu-Natal en geld sal ontvang daarvoor. B. Wes-Kaap druiwe sal ruil met Vrystaat en geld sal ontvang daarvoor. C. KwaZulu-Natal piesangs sal ruil met Vrystaat en mielies sal ontvang daarvoor. D. KwaZulu-Natal sal piesangs direk vir druiwe ruil met Wes-Kaap. 9. Watter een van die volgende is nie 'n markmislukking nie? A. Eksternaliteite B. Onderaanwending van hulpbronne C. Hoë pryse D. Werkloosheid 10. Slegs een van die volgende aksies sal lei tot 'n direkte afname in hoeveelheid gevra van Monster energiedrankies, ceteris paribus: A. Die prys van Red Bull daal met byna 50%. B. 'n Dosent in die Ekonomie 110 klas vertel aan 300 studente dat die stert van 'n rot gevind is in 'n blikkie Monster energiedrankies. C. Die styging in aksynsbelasting op bier lei daartoe dat minder mense Monster energiedrankies kan bekostig as 'n "regmakerdrankie" die volgende oggend. D. Die besturende direkteur van Monster energiedrankies SA kondig aan dat die maatskappy nie in 'n prysoorlog met ander energiedrankieverskaffers gaan betrokke raak nie, aangesien hulle produk beter is as die ander soortgelyke produkte. Inteendeel, hy kondig 'n prysverhoging aan van 15% wat onmiddelik van krag is. 11. Die vorm van die produksiemoontlikheidskromme is konkaaf tot die oorsprong want: A. geleentheidskoste om ekonomiese hulpbronne tot alternatiewe gebruike te allokeer, styg. B. geleentheidskoste daal met die verloop van tyd. C. geleentheidskoste styg eerstens en daarna daal dit soos hulpbronne herallokeer word. D. geleentheidskoste om ekonomiese hulpbronne tot alternatiewe gebruike te allokeer, daal. 12. Eiebelang is een van die basiese boublokke van 'n markstelsel. Die strewe na eie belang deur ekonomiese besluitnemers impliseer dat hulle poog om: A. uitsluitlik hulle eie doelwitte te bereik ten einde hulle nut en profyt te maksimeer. B. hulle doelwitte te bereik wat gewoonlik vereis dat hulle iets van waarde aan ander moet lewer. C. eerstens die nut te maksimeer van die laagste-inkomeverdieners in hulle gemeenskap. D. owerheidsinmenging om markmislukkings reg te stel, te beperk. 11

12 13. In die mark vir gebruikte klere wat as minderwaardige goedere geklassifiseer word, lei 'n toename in verbruikersinkome tot: A. 'n toename in ewewigshoeveelheid en 'n daling in ewewigsprys. B. 'n daling in ewewigsprys en afname in ewewigshoeveelheid. C. 'n styging in ewewigsprys en toename in ewewigshoeveelheid. D. 'n daling in ewewigsprys en toename in ewewigshoeveelheid. 14. Minimumlone is 'n tipiese voorbeeld van: A. 'n mark wat volgens markbeginsels funksioneer. B. 'n vloerprys waar die minimumloon onder die heersende markprys vasgestel word. C. 'n prysplafon waar die minimumloon onder die heersende markprys vasgestel word. D. 'n prysvloer waar die minimumloon bokant die heersende markprys vasgestel word. 15. Watter van die volgende veroorsaak 'n nog groter tekort, ceteris paribus? A. 'n Styging in prys. B. 'n Toename in aanbod. C. 'n Afname in vraag. D. 'n Daling in prys. 16. Oorweeg die vraag na DVDs in Suid-Afrika. Die verbruikers voorkeure het verander en verbruikers verkies nou Blu-ray skywe in plaas van DVDs. Die gevolg hiervan is: A. 'n daling in die ewewigsprys van DVDs. B. 'n toename in die ewewigshoeveelheid van DVDs. C. 'n afname in die ewewigshoeveelheid van Blu-ray skywe. D. 'n daling in die ewewigsprys van Blu-ray skywe. 17. Die volgende grafiek dui die produksiemoontlikheidskromme aan vir die produksie van melk en lakosevrye koekies in 'n geslote ekonomie. Die ekonomie ervaar die uitbreek van malkoeisiekte en verminder vervolgens die hoeveelheid melkproduserende koeie, ceteris paribus. 12

13 Watter een van die opsies dui die situasie in die ekonomie aan? A. A na B. B. PPCx na PPC. C. PPC na PPCx. D. A na C. 18. Die volgende tabel dui die beskikbare tegnieke aan vir die produksie van 20 eenhede van 'n spesifieke produk: Hulpbronne Hulpbron Moontlike produksietegniek Pryse (R) #1 #2 #3 #4 #5 Land Arbeid Kapitaa Entrepreneurskap Op grond van die bostaande hulpbronpryse, is die mees ekonomies-doeltreffende produksietegniek: A. 1. B. 2. C. 3. D Verwys na bostaande grafiek. 'n Prys van R60 in hierdie mark, sal lei tot: A. ewewig. B. 'n tekort van 100 eenhede. C. 'n oorskot van 50 eenhede. D. 'n oorskot van 100 eenhede. 13

14 20. Veronderstel die grafieke dui 'n mededingende mark aan vir die produk onder bespreking. P S P S P 2 E 2 P 1 E 1 P 1 E 1 P 2 E 2 D 1 D 2 D 2 D 1 0 Q 1 Q 2 Q 0 Q 2 Q 1 Q Graph/Grafiek A Graph/Grafiek B P S 1 S 2 P S 2 S 1 P 1 E 1 P 2 E 2 P 2 E 2 P 1 E 1 D 1 D 1 0 Q 1 Q 2 Q 0 Q 2 Q 1 Q Graph/Grafiek C Graph/Grafiek D Kies die enkele bostaande grafiek wat die volgende verandering in vraag en aanbod in die marksituasie die beste voorstel: Wanneer daar in die aartappelmark'n lang periode van droogte ervaar word. A. Grafiek A. B. Grafiek B. C. Grafiek C. D. Grafiek D. 21. Wanneer produkpryse verander, is verbruikers geneig om meer te koop van die nou-goedkoper goedere en minder te koop van die nou-duurder goedere. Die situasie beskryf: A. die koste-effek. B. die prys-effek. C. die inkome-effek. D. die substitusie-effek. 14

15 22. Wanneer ekonome 'n "mark" beskryf, bedoel hulle: A. 'n plek waar aandele en effekte verhandel word. B. inligtingsnetwerke wat individue toelaat om in verbinding te bly met mekaar. C. 'n hipotetiese plek waar die produksie van goedere en dienste plaasvind. D. 'n meganisme wat die aksies van verbuikers en produseerders koordineer om ewewigspryse en hoeveelhede te bewerkstellig. 23. Allokasiedoeltreffendheid beteken dat: A. die wet van stygende geleentheidskoste het 'n maksimum bereik. B. die mees koste effektiewe metodes word gebruik om produkte te produseer. C. hulpbronne word toegewy aan die produksie van goedere wat die meeste begeer word deur die samelewing. D. die hoeveelheid van ander produkte wat opgegee moet word om 'n minimum hoeveelheid van produksie van 'n spesifieke produk te bekom. 24. Watter stelling beskryf dalende marginale nut die beste? A. Indien die prys van hamburgers afneem, sal daar 'n verandering wees in verbruikersvoorkeur ten gunste van hamburgers. B. 'n Tipiese verbruiker sal minder bevrediging ontvang van die verbruik van hamburgers as van die verbuik van varkvleis. C. 'n Tipiese verbruiker sal minder bevrediging ontvang van die verbruik van die vierde hamburger per week as van die derde hamburger per week. D. 'n Daling in die prys van hamburgers sal lei daartoe dat verbruikers meer hamburgers sal koop omdat hulle, effektiewelik, 'n styging in inkome ervaar het. 25. "In die mark vir mielies, oorskry vraag dikwels aanbod en soms oorskry aanbod die vraag." "Die prys van mielies styg en daal in reaksie op veranderinge in vraag en aanbod." In watter een van die twee stellings word die terme "vraag" en "aanbod" korrek gebruik? A. Nie een van die stellings nie. B. In die tweede stelling. C. In die eerste stelling. D. In beide stellings. 26. Paul wil 'n boek koop. Die ekonomiese perspektief stel voor dat Paul die boek sal koop indien: A. positiewe ekonomie meer belangrik is as normatiewe ekonomie in die besluitneming. B. normatiewe ekonomie meer belangrik is as positiewe ekonomie in die besluitneming. C. die marginale koste van die boek groter is as die marginale voordeel daarvan. D. die marginale voordeel van die boek groter is as die marginale koste daarvan. 15

16 27. Watter stelling illustreer 'n mikroekonomiese vraag? A. Wat is die huidige nasionale koers van werkloosheid? B. Ervaar die ekonomie 'n daling in die inflasiekoers? C. Sal 'n nuwe tipe televisiestel die aantal kopers laat toeneem? D. Is die produksie van goedere en dienste in die ekonomie groter hierdie jaar as laasjaar? 28. Aanvaar dat die prys van produk Y (waarvan die hoeveelheid op die vertikale as aangedui word) is R15 en die prys van produk X (waarvan die hoeveelheid op die horisontale as aangedui word) is R3. Aanvaar ook dat geldinkome R60 is. Die absolute waarde van die helling van die gevolglike begrotingslyn is: A. 5. B. 1/5. C. 4. D Beskou die motormark. Twee veranderings gebeur gelyktydig: (a) Die prys van brandstof neem vinnig toe en (b) onderhandelings tussen werkgewers en 'n werknemersvakbond lei tot 'n ooreenkoms wat lone laat toeneem.indien aangeneem word dat die effek van (a) groter was as (b), wat sal die effek van hierdie veranderings wees op die ewewigsprys en hoeveelheid in die mark? A. P neem af; Q neem af. B. P onbepaald; Q neem af. C. P neem toe; Q onbepaald. D. P neem af; Q neem toe. 30. Veronderstel u het geldinkome van R10 wat u alles op Coke en springmielies bestee. In bogenoemde grafiek is die prys van Coke en springmielies, onderskeidelik: A. R0.5 en R1. B. R1 en R0.5. C. R1 en R2. D. R0.4 en R