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Demand on Music Χαράλαμπος Λουκά Τμήμα Οικονομικών, Πανεπιστήμιο Κύπρου [ Καθηγητής: Πάρις Κλεάνθους ]
Εισαγωγή ,[object Object],[object Object],[object Object],[object Object]
Hot 100 Radio Airplay ,[object Object],[object Object],[object Object],[object Object]
Billboard Hot 100
Στόχοι ,[object Object],[object Object],[object Object]
Βιβλιογραφία ,[object Object],[object Object],[object Object],[object Object],[object Object]
Consumer Not to purchase song Purchase song Madonna Eminem American pie Like a Prayer Music Bad girl Lose yourself When I’m gone The real slim shady The way I am
Μεθοδολογία ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MODELING DEMAND FOR SONGS
Δεδομένα ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Δεδομένα (μεταβλητές) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Calculation of concentration Ratio ,[object Object],[object Object]
Calculation of Herfindahl – Hirschman Ratio ,[object Object],[object Object],[object Object]
Mean Utility levels of consumers  i  from choosing songs  j  at time  t,  δ  is: a   bbprevious   +  b(lns j /c)   +  δ (lns j /a)   +  ε ijt   ( + )   (+)  ( + )   Estimation is done using simulated method of  moments. Instruments were used to correct for the  endogeneity for billboard variable.  Valid instruments used are: spins_t1,  spins_t2, spins_t3.  There will be appropriate instruments for the billboard  variable because they are considered to be a component  of billboard methodology.  RANDOM UTILITY SPECIFICATION
PARAMETER ESTIMATES FROM RANDOM COEFFICIENTS MODEL Table 1 Parameters from Demand IV Estimation across Models IV  IV  IV  Logit  NML1  NML2 Variable  Coefficients of Characteristics (B’s) Billboard variable  .08312*  .0894479*    .0876795*  (.0065858)  (.0066689)  (.0065562) Lnshare j/a  .5900136*  .5499985*  (.0889111)  (.0863784) Comp. shares  -3.658588* (.9258662) Notes: No. of observations: 744 Standard errors are in parenthesis *indicates for p-value < 0.01 #indicates statistically insignificant for all internals of confidence
Κύρια Αποτελέσματα ,[object Object],[object Object]
Nested logit results ,[object Object],[object Object]
Table2 Correcting for serial correlation Comparing OLS and FGLS Coefficient  OLS  Cohrane-Orcutt Billboard Variable  .0354139*  .0353378* (.0026945)  (.0026894) Lnshare j/a  .3497378 *  .2575079* (0439599)  (.0663477) Company shares  -.746492#  -1.072981# (.7315225)  (.6785416) Notes: No. of observations: 744 Standard errors are in parenthesis *indicates for p-value < 0.01 #indicates statistically insignificant for all internals of confidence
Testing for serial correlation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Κύρια Συμπεράσματα ,[object Object],[object Object],[object Object]

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Charis Model Presentation

  • 1. Demand on Music Χαράλαμπος Λουκά Τμήμα Οικονομικών, Πανεπιστήμιο Κύπρου [ Καθηγητής: Πάρις Κλεάνθους ]
  • 2.
  • 3.
  • 5.
  • 6.
  • 7. Consumer Not to purchase song Purchase song Madonna Eminem American pie Like a Prayer Music Bad girl Lose yourself When I’m gone The real slim shady The way I am
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.  
  • 13.
  • 14.
  • 15. Mean Utility levels of consumers i from choosing songs j at time t, δ is: a bbprevious + b(lns j /c) + δ (lns j /a) + ε ijt ( + ) (+) ( + ) Estimation is done using simulated method of moments. Instruments were used to correct for the endogeneity for billboard variable. Valid instruments used are: spins_t1, spins_t2, spins_t3. There will be appropriate instruments for the billboard variable because they are considered to be a component of billboard methodology. RANDOM UTILITY SPECIFICATION
  • 16. PARAMETER ESTIMATES FROM RANDOM COEFFICIENTS MODEL Table 1 Parameters from Demand IV Estimation across Models IV IV IV Logit NML1 NML2 Variable Coefficients of Characteristics (B’s) Billboard variable .08312* .0894479* .0876795* (.0065858) (.0066689) (.0065562) Lnshare j/a .5900136* .5499985* (.0889111) (.0863784) Comp. shares -3.658588* (.9258662) Notes: No. of observations: 744 Standard errors are in parenthesis *indicates for p-value < 0.01 #indicates statistically insignificant for all internals of confidence
  • 17.
  • 18.
  • 19. Table2 Correcting for serial correlation Comparing OLS and FGLS Coefficient OLS Cohrane-Orcutt Billboard Variable .0354139* .0353378* (.0026945) (.0026894) Lnshare j/a .3497378 * .2575079* (0439599) (.0663477) Company shares -.746492# -1.072981# (.7315225) (.6785416) Notes: No. of observations: 744 Standard errors are in parenthesis *indicates for p-value < 0.01 #indicates statistically insignificant for all internals of confidence
  • 20.
  • 21.