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บทที่ 2. อุปสงค์ อุปทาน และภาวะดุลยภาพ. อุปสงค์ อุปทาน และภาวะดุลภาพ/ความหมายอุปสงค์. หนังสือหน้า 13. เลขหน้า 2/2. อุปสงค์ (demand). 2.1 ความหมายของอุปสงค์

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บทที่ 2

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2

2


Demand

/

13

2/2

(demand)

2.1


2 3 demand determinants and demand function

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13

2/4

2.3 (demand determinants and demand function)

2.3.1

1) (price : Px)


2

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14

2/5

2) (Income : I) (normal goods) (luxury goods) (inferior goods)


2

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14

2/6

3)

(1) (substitute) (Qx)

(2) (complement) (Qx)

4) (population size : Pz)


2

5) (income distribution between household : Di) () () ()

6) (taste : T)

7) (seasonal: S)

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14

2/7


2 3 2 demand function

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15

2/8

2.3.2 (demand function)

X(Px) (I) (Py) (Pz) (Di) (T) (S)


2 4 law of demand

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15

2/10

2.4 (law of demand)

(low of demand)


2

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16

2/12

2.5

(demand schedule and demand curve)

2

1) (individual demand schedule)


2

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17

2/15

2)

(total demand schedule or market demand schedule)


2

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19

2/18

2.6

2.6.1 (change in the quantity demanded) 6 (move along curve)


2

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19

2/19

DD ( A B)

DD ( A C)


2

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19

2/20

2.6.2 (change in demand)


2

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19

2/21

(shift in demand curve) (move along curve) ()


2

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20

2/22

2.3

1


2

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21

2/24

DD

D D

I P (P ) P

D T S ()

1

1

s

c

z

i


2

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21

2/26

P

DD

D D

I P (P ) P

D T S ()

2

2

s

c

z

i


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