Mathematical modeling of gold price

This bachelor thesis is focused on mathematical modelling of gold price. After introducing basic models of Box-Jenkins methodology and models of conditional hetoskedasticity, the time series was modelled by random walk process. The time series has not constant variance, neither normal distribution, therefore for the second model was considered volatility model GARCH. Using the volatility model GARCH is possible to refine prediction intervals for forecast one step ahead. Results were calculated in R software and MS Excel