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Evolution of public broadcasting: TeleJurnal’s viewership trends and strategic implications for business sustainability

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26 juin 2025
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Figure 1

Monthly rating of TeleJurnal (2018–2022) and Forecast for 2023–2025.
Monthly rating of TeleJurnal (2018–2022) and Forecast for 2023–2025.

Figure 2

TVR forecast based on ARMA model.
TVR forecast based on ARMA model.

Dickey–Fuller test results for stationarity analysis

Null hypothesis: TVR has a unit root
Exogenous: constant, linear trend
Lag length: 3 (automatic based on SIC, MAXLAG = 10)
t-statistic Prob.*
ADF test statistic −4.419714 0.0044
Test critical values: 1% level −4.130526
5% level −3.492149
10% level −3.174802

Correlogram of the TVR series_

Date: 08/04/24 Time: 07:58
Sample: 2018:01 2022:12
Included observations: 60
Autocorrelation Partial correlation AC PAC Q-Stat Prob
. |*****| . |*****| 1 0.689 0.689 29.942 0.000
. |***| .*|. | 2 0.432 −0.081 41.930 0.000
. |**| . |*. | 3 0.316 0.095 48.430 0.000
. |*.| **|. | 4 0.098 −0.270 49.065 0.000
. |. | . |*. | 5 0.005 0.098 49.067 0.000
.*|. | .*|. | 6 −0.071 −0.150 49.416 0.000
.*|. | . |. | 7 −0.124 0.061 50.503 0.000
. |. | . |*. | 8 −0.046 0.095 50.657 0.000
. |*. | . |** | 9 0.083 0.203 51.158 0.000
. |*. | . |. | 10 0.181 0.058 53.588 0.000
. |**| . |. | 11 0.245 0.049 58.134 0.000
. |**| .*|. | 12 0.233 −0.079 62.343 0.000
. |*. | .*|. | 13 0.143 −0.105 63.969 0.000
. |*. | . |. | 14 0.091 0.021 64.645 0.000
. |. | . |. | 15 0.046 0.026 64.819 0.000
.*|. | .*|. | 16 −0.077 −0.101 65.325 0.000
.*|. | . |. | 17 −0.166 −0.049 67.696 0.000
.*|. | . |*. | 18 −0.132 0.109 69.250 0.000
.*|. | .*|. | 19 −0.139 −0.118 70.993 0.000
.*|. | . |. | 20 −0.089 0.058 71.728 0.000
. |*. | . |*. | 21 0.069 0.142 72.184 0.000
. |*. | . |*. | 22 0.156 0.093 74.551 0.000
. |*. | . |. | 23 0.188 −0.049 78.116 0.000
. |**| . |*. | 24 0.249 0.111 84.504 0.000
. |*. | .*|. | 25 0.187 −0.133 88.235 0.000
. |*. | . |. | 26 0.083 −0.046 88.993 0.000
. |. | .*|. | 27 −0.018 −0.121 89.028 0.000
.*|. | . |. | 28 −0.143 0.036 91.392 0.000

Model ARMA (1,11) for TVR_

Dependent variable: TVR
Method: least squares
Variable Coefficient Std. error t-statistic Prob.
C 0.976146 0.102396 9.533022 0.0000
AR(1) 0.607754 0.103520 5.870912 0.0000
MA(11) 0.910815 0.021739 41.89706 0.0000
R-squared 0.718066 Mean dependent var 1.164407
Adjusted R-squared 0.707997 SD dependent var 0.294058
S.E. of regression 0.158901 AIC −0.791564
Sum squared residual 1.413970 SC −0.685926
Log-likelihood 26.35113 F-statistic 71.31404
Durbin–Watson stat 1.986850 Prob(F-statistic) 0.000000
Inverted AR roots 0.61
Inverted MA roots 0.95 + 0.28i 0.95 – 0.28i 0.65 + 0.75i 0.65 – 0.75i
0.14 − 0.98i 0.14 + 0.98i −0.41 – 0.90i −0.41 + 0.90i
−0.83 + 0.54i −0.83 – 0.54i −0.99
Breusch–Godfrey serial correlation LM test
F-statistic 0.340248 Probability 0.713108
Obs*R-squared 0.378654 Probability 0.827516
ARCH test
F-statistic 1.001927 Probability 0.321150
Obs*R-squared 1.019470 Probability 0.312645