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Factors Influencing Visitor's Choices of Urban Destinations in North ...

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Tourism Demand/Econometric Modell<strong>in</strong>g LiteratureTourism Demand/Econometric Modell<strong>in</strong>g Literature provides a range <strong>of</strong> econometrictechniques and models used to forecast tourism demand. S<strong>in</strong>ce most <strong>of</strong> the empiricalwork that was found was focused on determ<strong>in</strong><strong>in</strong>g tourist demand, Global Insight <strong>in</strong>cludedthe two together <strong>in</strong> this one category. Econometric techniques range from statistical timeseries that <strong>in</strong>clude simple ARIMA, autoregressive and “no change” models to morecomplicated error-correction models. Typical tourism demand models focus on theorig<strong>in</strong>-dest<strong>in</strong>ation pair <strong>of</strong> countries.“A Review <strong>of</strong> International Tourism Demand Models”Lim (1997) provides a comprehensive summary <strong>of</strong> 100 articles on the topic <strong>of</strong> tourismdemand modell<strong>in</strong>g published over the period 1961-94. Lim presents an overview <strong>of</strong> themost commonly used explanatory variables; classification by type <strong>of</strong> data used;dependent variables modelled; model specifications; and the qualitative factors that<strong>in</strong>fluence tourism demand.Data Description: More than 50% <strong>of</strong> tourism studies used annual data. While thenumber <strong>of</strong> annual observations ranged from 5 to 28, the most common number <strong>of</strong>observations was 16. This small number <strong>of</strong> observations questions the reliability <strong>of</strong>regression estimates for many <strong>of</strong> the studies. To address this concern, some studies usedmonthly or quarterly data, cross-section data, or pooled time-series data.Model Specification: Typical tourism demand model focuses on the orig<strong>in</strong>-dest<strong>in</strong>ationpair <strong>of</strong> countries. The general demand model that is typically estimated is presentedbelow:DT ij = F(Y j , TC ij , RP ij , ER ij , QF i )Where:DT ij - demand for <strong>in</strong>ternational travel services by orig<strong>in</strong> j for dest<strong>in</strong>ation i;Y j – <strong>in</strong>come <strong>of</strong> orig<strong>in</strong> j;TC ij – transportation cost between dest<strong>in</strong>ation i and orig<strong>in</strong> j;RP ij – relative prices (i.e. the ratio <strong>of</strong> prices <strong>in</strong> dest<strong>in</strong>ation i to prices <strong>in</strong> orig<strong>in</strong> j and <strong>in</strong>alternative dest<strong>in</strong>ations);ER ij – currency exchange rate, measured as units <strong>of</strong> dest<strong>in</strong>ation i’s currency per unit <strong>of</strong>orig<strong>in</strong> j’s currency;QF i – qualitative factors <strong>in</strong> dest<strong>in</strong>ation i.53

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