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How and Why Identical Goods Are
Priced Differently: Sim Lim Square
         – A Case Study
     Melissa Lorraine Chua Jialing
             Goh Shou Xian
             Goh Yong Min
        Charlene Soh Yan Ling
        Joshua Wong Weng Yew
       Vincent Fu Jing Cai (MIA)
How and Why Identical Goods Are
Priced Differently: Sim Lim Square
         – A Case Study
     Melissa Lorraine Chua Jialing
             Goh Shou Xian
             Goh Yong Min
        Charlene Soh Yan Ling
        Joshua Wong Weng Yew
       Vincent Fu Jing Cai (MIA)
Introduction


• We spend a lot of our time on our
  computers
• Fast changing technology
• We want to help you make better
  buying decisions when you shop for
  computers
Price Detectives
• We went down to Sim
  Lim Square disguised
  as computer shoppers
• Formed a shopping
  list
• Asked 3 shops on
  each of the two levels
  selling computers (4 &
  5) for their prices
Findings
Limitations
Market structure


Expected to be perfect competition

Anomaly: Charging different prices

Bundling products

Distance from elevators
Why we used the Bertrand Model to
    understand shops’ pricing



Goods involved are identical,
homogeneous

Shops have different prices and
compete solely on prices
The Bertrand Model of shops
                 P1 & P2 = Prices of 2 shops



                 45 degree line = Prices in
                 which 2 shops are equal



                 P1(P2) = Reaction function
                 of Shop 1
Implications from our study



Shops are not in collusion (They sell
at different prices)
Different prices imply that they are
in a process of lowering prices
Consumers may have imperfect
information on prices
Search Theory

We only search for a lower price
when the expected average benefit
(saving) is more than the cost.
Costs of searching
Benefits of searching
Firms nearer the elevators know
this…
And So...
Conclusion
Conclusion
 If you want to buy cheaper
products from Sim Lim Square,
        go to shops
Conclusion
 If you want to buy cheaper
products from Sim Lim Square,
        go to shops
   further away from
      the elevators.
Thank
 You
Q&A

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How and Why Identical Goods Are Priced Differently—Sim Lim Square—A Case Study

  • 1. How and Why Identical Goods Are Priced Differently: Sim Lim Square – A Case Study Melissa Lorraine Chua Jialing Goh Shou Xian Goh Yong Min Charlene Soh Yan Ling Joshua Wong Weng Yew Vincent Fu Jing Cai (MIA)
  • 2. How and Why Identical Goods Are Priced Differently: Sim Lim Square – A Case Study Melissa Lorraine Chua Jialing Goh Shou Xian Goh Yong Min Charlene Soh Yan Ling Joshua Wong Weng Yew Vincent Fu Jing Cai (MIA)
  • 3. Introduction • We spend a lot of our time on our computers • Fast changing technology • We want to help you make better buying decisions when you shop for computers
  • 4. Price Detectives • We went down to Sim Lim Square disguised as computer shoppers • Formed a shopping list • Asked 3 shops on each of the two levels selling computers (4 & 5) for their prices
  • 7. Market structure Expected to be perfect competition Anomaly: Charging different prices Bundling products Distance from elevators
  • 8. Why we used the Bertrand Model to understand shops’ pricing Goods involved are identical, homogeneous Shops have different prices and compete solely on prices
  • 9. The Bertrand Model of shops P1 & P2 = Prices of 2 shops 45 degree line = Prices in which 2 shops are equal P1(P2) = Reaction function of Shop 1
  • 10. Implications from our study Shops are not in collusion (They sell at different prices) Different prices imply that they are in a process of lowering prices Consumers may have imperfect information on prices
  • 11. Search Theory We only search for a lower price when the expected average benefit (saving) is more than the cost. Costs of searching Benefits of searching Firms nearer the elevators know this…
  • 12.
  • 15. Conclusion If you want to buy cheaper products from Sim Lim Square, go to shops
  • 16. Conclusion If you want to buy cheaper products from Sim Lim Square, go to shops further away from the elevators.