Abstract
Accurate forecast of inbound tourism demand is vital for the tourism industry as well as government economic policy and decision making. This article sought to identify the factors which influence the demand for China’s tourism with the aid of econometric models and to generate forecasts of international tourist arrivals to China from five major long-haul source markets. Using the general-to-specific modelling approach, the demand for tourism in China by the residents of Australia, Canada, Germany, the United Kingdom and the United States of America is modelled and forecasted. The empirical results indicate that the ‘word of mouth effect’, income levels in the origin country, the costs of tourism in both China and competing destinations are the crucial factors that determine the demand for China’s tourism by residents of the five origin countries. The forecasts show sluggish growth in tourist arrivals for most of the Western source markets. Findings hold implications for policy formulations.
Introduction
AS one of the fastest growing inbound markets in the world, China’s tourism economy has progressed remarkably over the past two decades. The country ranks fourth in the world in terms of international tourist arrivals and fifth in receipts (World Tourism Organization [UNWTO], 2009a). The potential of growth is still high; as indicated by forecasts from the UNWTO (2001), China will become the largest tourist country and the fourth largest for overseas travel by 2020.
The ever-increasing role of tourism in the generation of wealth and employment cannot be over emphasised. In 2009, the central government of China listed tourism on the top of its agenda of the national economic and social developments. By emphasising tourism as a strategic pillar industry in the national economy, the overall plan calls for further expansion of the tourism market and seeks to make China the world’s flagship Tourism destination by 2020. With an increase of 8 per cent per year, the inbound market is projected to rise to 90 million tourist arrivals. The expected results include 12 per cent annual growth rate in tourism revenues, adding 4.5 per cent gross domestic product (GDP) to the national economy by 2015 as well and creating half a million jobs every year (UNWTO, 2009b).
To be able to realise these monumental goals, accurate forecasts of inbound tourism demand for China are critical for government economic policy and decision making as well as the tourism industry. In this study, forecasting models are developed for tourist arrivals in China from five ofits major long-haul tourism-generating countries: Australia, Canada, Germany, the United Kingdom (UK), and the United States of America (USA). The estimated models are then used to generate forecasts of this demand for the period beginning in the first quarter of 2010 to the last quarter of 2015.
The model
Tourism demand is a complex phenomenon which can be influenced bynumerous exogenous factors – economy, natural disasters, destination image, political situation, etc. Consequently, it is one of the most difficult variables to be predicted. Nevertheless, it is becoming more and more critical for both destinations and private sectors to anticipate demand trends and use such information as a basis of management decisions and planning. Song et al. (2003b) note that published studies on tourism demand analysis can be put into two major categories: those that employ non-causal modelling techniques and those using causal (econometric) approaches.
The non-causal forecasting approaches (most especially, time series models) have been used extensively, over the past four decades, for tourism demand forecasting (Song and Li, 2008). Smeral and Wüger (2005), Du Preez and Witt (2003), Goh and Law (2002) and Gustavsson and Nordstrő(2001) are researchers who employed time series approaches such as the integrated autoregressive moving-average model (ARIMA) or seasonal ARIMA. Though this technique is less costly in terms of data collection and model estimation, it has some major limitations. The most important being that the models are not constructed on the basis of any theory underlining tourists’ decision-making process and so cannot be utilised for the purpose of policy evaluation (Song et al., 2003b).
In contrast, econometric models (which are mainly causal models) play many other useful roles in addition to forecasting (Clements and Hendry, 1998). The ability to examine the causal relationships between the tourism demand variable and its determining factors is considered to be one of its major advantages over the time series approach. Song et al. (2003b) emphasise two reasons why econometric approaches are superior to time series models: they offer researchers with valuable insights into the tourists’ decision-making process and second, its model specification permits forecasters to assess the direction and magnitude of tourists’ response to changes in the determining factors (through an examination of the estimated demand elasticities). Recent studies using econometric approaches include Song and Witt (2006), Li et al. (2006), Witt et al. (2004), Song and Witt (2003), Song et al. (2003a, b), Kulendran and Witt (2003), Tan et al. (2002) and Song and Witt (2000), among others.
Determinants of tourism demand
The demand for tourism is modelled to follow the standard economic theory; own price of a good, the price of a substitute good and consumers’ income constitute the key factors determining the demand of a consumer good. The following equation is thus proposed to represent the demand for China’s tourism by residents from each origin country i:
The data for the dependent variable Qit (measured by tourist arrivals from country i) were retrieved from the Yearbook of China Tourism Statistics (CNTA, 2011). The income variable, Yit (representing income in the origin country i), measured by the real GDP (2005 = 100), was inferred from the International Financial Statistics Yearbook published by the DSI Data Service & Information (2010) database. GDP, instead of personal disposable income, is used because the tourist arrival figures include a substantial proportion of business travellers. Song et al. (2003b) and Song and Witt (2003) followed similar approaches and established the significance of GDP in a number of origin countries. It is assumed that this variable will positively influence the demand for China’s inbound tourism.
The own price variable Pit is measured by the consumer price index in China relative to the consumer price index in the origin country, adjusted by the exchange rates between the currencies of China and its origin country, and is thus given as:
The substitute price variable Pst refers to the weighted average (based on market shares) of the consumer price levels for tourists (measured by the exchange rate-adjusted consumer price index) in five major competing destinations in Asia. It is represented mathematically as:
The exchange rates were obtained from the International Financial Statistics Yearbook. The same applies to the consumer price indices except those of Germany which were retrieved from the database of the Organisation for Economic Cooperation and Development (2010). For the substitute prices, the data of tourist arrivals from specific origin country were adopted to calculate the share of the tourism market.
Song and Li (2008) and Witt and Witt (1992) provide further justification for the explanatory variables included and the forms of variables used. The data for other variables that may influence tourism demand (such as the change of consumer taste towards China tourism) were excluded either because of their unavailability or measurement difficulties. As shown in the following section, this however did not affect the goodness-of-fit of the estimated models (the R2 indicates very high significance).
Specification of econometric model
The power function in Equation (1) is used in model estimation for the following reasons: first, most previous empirical studies suggest that tourism demand can be modelled better by the power function than the simple linear demand function in terms of model’s statistical significance and forecasting ability (Witt and Witt, 1992; Song et al., 2003b); second, the power function can be transformed into a log-linear specification, which can easily be estimated with ordinary least squares (OLS). The estimated coefficients of the explanatory variables in the log-linear model can be interpreted directly as demand elasticities. From Equation (1), the general tourism demand model is now specified as the following (after taking the logarithm):
Since the model is to be used for analysing and forecasting tourism demand, it must reflect the dynamic feature of tourists’ decision process. The autoregressive-distributed lag model (ADLM) (Hendry, 1995; Pesaran and Shin, 1995), which was introduced to tourism forecasting by Song and Witt (2000), is employed in this study to capture the dynamic process of tourism demand. The ADLM for Equation (4) is specified as follows:
As shown in Equation (5), the current tourism demand is influenced by current values of the explanatory variables as well the lagged-dependent and explanatory variables. The specification takes into account the time path of tourists’ decision-making process. Since quarterly data are used in the model estimation, four time lags were introduced for each variable. Song et al. (2003b) cite two reasons why it is necessary to include lagged dependent variables on the right-hand side of the demand model: the effect of ‘word of mouth’ recommendations and the tendency for tourists to return to previously visited destination because they are less uncertain about that destination.
Since the coefficients in Equation (5) are not demand elasticities likethe coefficients of β1, β2 and β3 in Equation (4), some algebraic manipulations are necessary. If the long-run equilibrium is assumed, Equation (5) can be rewritten as:
A testing down procedure, termed as the general-to-specific procedure (Hendry, 1995), is adopted to eliminate variables which are either insignificant or economically (or theoretically) unacceptable. The test procedure begins with an estimation of Equation (5) using OLS to check the statistical significance of all the variables. The statistically insignificant variables are then eliminated one-by-one from the specification in accordance with the t-statistics of the estimated coefficients starting with the least significant ones. After getting rid of all the insignificant variables and the variables with incorrect signs from the specification, the model is tested with a number of diagnostic statistics to ensure that there is no misspecification in the model. Song and Witt (2000, pp. 34–40) discusses the required diagnostic statistics, which include the tests for heteroscedasticity, autocorrelation, normality and forecasting ability. Based on this methodology, empirical results are presented in the following sections.
Estimates of the demand models
Australia, Canada, Germany, the UK and the USA are important long-haul source markets for China tourism. Effectively modelling and accurately forecasting the demand for China tourism by residents of these countries can provide some useful information for strategy formulation for both the public and private sectors.
To account for seasonal variations in the quarterly data used, three seasonal dummies were included in estimating Equation (5). In addition, a number of dummy variables were incorporated to capture the influence of one-off events on the demand for China tourism. These were the 4 June, 1989 Tiananmen Square Protest (D89) (negative effect expected in 1989), the Gulf War in 1990–1991 (D91) (negative effect expected in 1991), the financial crises in 1996 (D96) and 2008 (D08) (negative effect expected in the respective years), the ‘September 11’ terrorist attack on the USA (D01) (negative effect expected in 2001), SARS in 2003 (D03) (negative effect expected in 2003) and the initial recovery from the global financial crisis (D09) (positive effect expected in 2009). Each of these dummy variables takes the value of 1 in the respective quarter(s) where the event was expected to have effect and 0 otherwise. As a result, the initial ADLM now becomes:
Estimates of demand models (1988Q1–2009Q4)
Note: The figures in parentheses are t-statistics.
The Breusch–Godfrey LM test is used for testing serial correlation at lag 4. The Jarque–Bera test is used for testing normality. The White test is used for testing heteroscedasticity. The Ramsey’s regression equation error test (or Ramsey RESET test) is used to test the functional form. The Chow forecast is used to test forecasting failure. However, since the dummy variable representing the recovery from the global financial crisis from the year 2009 is included in the demand model, this statistic cannot be calculated.
** and * represent 1 per cent and 5 per cent significant levels, respectively.
Noteworthy from the results is the very high significance of the lagged dependent variables (for ln Qit) in all the five models. This is a clear indication that the demand for China tourism is dependent upon previous visits. In other words, China’s international tourism demand from each of the five source markets is highly influenced by the ‘word of mouth’ effect and/or consumer persistence (or repeat visits). It is, therefore, critical for China to provide high-quality services in order to attract new and repeat tourists. Another important determinant is the price of China’s tourism product/service. It appears to be significant in each of the five models, though not to the same degree. The income variable is highly significant in all the models, suggesting that the income level of the origin country is a key factor that influences the demand for international tourism to China. In comparison to the income and price variables, the substitute price appears to be less influential in the demand for China tourism. Nonetheless, its value in all but one model (Australia) cannot be ignored. It is important to note that most of theseasonal dummies were very significant, indicating the importance of seasonal variations in the demand for China’s tourism. The important implication of this finding is for China’s tourism industry to innovatively diversify its tourism resources to attract more tourists in the low seasons in order to avoid redundancies.
The Tiananmen Square Protest in 1989, the Gulf War in 1990–1991, SARS in 2003 and the financial crises in 1996 and 2008 all appear to have had negative impacts on China tourism demand. The SARS and the Tiananmen Square Protests, in particular, significantly reduced tourist arrivals from all five countries. The impact of the financial crises in 1996 on tourist arrivals was significant for only the Australian market, whereas those of 2003 were influential in the demand for China tourism from four of the source markets. The 11 September, 2001 terrorist attack on the USA was significant in reducing tourism demand from the USA in 2001.
Validity of the models
Looking at the adjusted R2 and the F-statistic, all the five demand models passed the goodness-of-fit test. The diagnostic statistics indicate that the model for the demand from Australia passed all the tests, while those of Canada and Germany failed one or two tests. The Durbin–Watson statistics and Lagrange multiplier (LM) test are used to check the autocorrelation problem but the former is biased towards 2 when a lagged dependent variable is included as an explanatory variable in the model. The White test is used to test heteroscedasticity and the model for the demand from Germany failed this test. This is probably due to the inconsistency of the data set resulting from the reunification of West Germany and East Germany in 1990. None of the models failed the normality tests. The model regarding the demand from Canada failed both the LM and White tests.
Elasticity of demand
Estimated demand elasticities
Price elasticity has a direct impact on tourist revenues. Knowledge of price elasticity can, therefore, aid suppliers of tourism products/services in China to make appropriate adjustment to their prices so as to maximise the total tourism revenue. As shown in Table 2, tourists from Germany and Canada appear to be more sensitive to the price changes of the tourism product/services in China, compared to the other three source markets (i.e. Australia, the UK and the USA).
The value of the income elasticity is an indication of the responsiveness of the tourism demand to the change in income level in the origin country. Thus, if the tourism product in China is income elastic (>1) for tourists from a particular region, an increase in income level of that country would result in more than proportionate increase in the demand for China tourism by residents from that country. To deal with the fluctuations in the demand for China tourism, it is critical for China to accurately predict the business cycles related to its key tourism origin countries. All the five models generate very high-income elasticities, suggesting that the demand for China’s tourism by tourists from these five countries is highly dependent upon the income levels of their respective countries of origin. The tourism demand from Germany seems to be most remarkably influenced by the economic conditions in that country.
The importance of the price elasticities for substitute destinations is seen in its ability to indicate how much can be generated when there is a price change in competing destinations. Tourists originating from Canada appear to be very much aware of the costs of tourism in the alternative destinations; consequently, a change in the cost of holidaying in the substitute destinations will have a major impact on the demand for China tourism. The important implication of this finding is for China to maintain the cost advantage of its tourism over competing destinations in order to keep attracting tourists from Canada.
It must, however, be noted that although the cross-elasticity for the Germany module indicates high elasticity, it is negative. This means tourists from Germany perceive China’s competing destinations in the sub-region as complimentary. In other words, an increase in the price of tourism in the competing destinations will result in a decrease in the demand for China’s tourism by German tourists. This calls for collaboration with competing destinations in the sub-region in an effort to attract more tourists from Germany.
Forecasts
Tourist arrivals for the period beginning in the first quarter of 2010 to the last quarter of 2015 are forecasted using the estimated demand models presented in the previous section. In doing this, the explanatory variables for the forecast period were first predicted using the Holt–Winter exponential smoothing approach. This approach is easier and also capable of producing reliable forecasts for the explanatory variables in tourism demand models (Song and Witt, 2000). After generating the explanatory variables, they were put into the forecasting models given in Table 1. The forecasts of the dependent variables were then calculated on the basis of the models’ estimated parameters. The actual value of the lagged Qit was used for the initial observation in the forecast sample. The forecasts for subsequent periods then used the previously forecasted values of ln Qit. The anti-log of the forecasted values of tourist arrivals is then taken to obtain the actual tourist arrivals (this is because the variables in the demand models are all in algorithm).
Quarterly forecasts (‘000) of tourist arrivals in China from five long-haul source markets (2011Q1–2015Q4)
Note: (1) AAGR denotes the average annual growth rate over 2010–2015 calculated by
Forecast evaluation
Conclusion
As a complex phenomenon which can be influenced by various factors, the modelling and forecasting of tourism demand is becoming more crucial for both destinations and private sectors. Using the general-to-specific approach, this study modelled and forecasted the demand for China’s tourism by residents from Australia, Canada, Germany, the UK and the USA. Through a careful statistical testing procedure, the best models that passed both statistical and economic tests were chosen for forecasting. The MAPE and RMSPE values demonstrate that generally the models possess good forecasting abilities.
From the estimates of the demand models, the ‘word of mouth’ effect or the behavioural persistence of tourists is the most influential factor in the demand for tourism in China from the five long-haul source markets. The suppliers of tourism products/services therefore need to enhance service quality and promote their brand images in order to attract more tourists to China.
Although the price of tourism in China is significant in all the five models, its elasticity is most crucial with respect to the demand for China’s tourism by residents from Germany. Thus, it is still important for China to pursue cost advantages over competing destinations.
The income level of the origin country is another important determinant of China’s inbound tourism. The income elasticities ranged from 2.973 to 6.846 suggesting wide differences among origin countries with respect to the responsiveness of tourism demand to changes in the income conditions in those countries. Demand for China tourism from residents of Germany, in particular, is greatly influenced by the income levels in that country. It behoves on policy makers in China to closely monitor the economic cycles in the source markets.
Though not as influential as the other factors, the price of tourism in competing destinations cannot be ignored. It is particularly important for tourists originating for Canada and Germany. Whereas an increase in the cost of tourism in substitute destinations will result in more tourists from Canada visiting China, it will also lead to a decline in tourist arrivals from Germany. In other words, tourists from Germany perceive substitute destinations as complimentary. The policy implication of this is that, in order to attract more tourists from Germany to China, players in the industry should collaborate with their counterparts in competing destinations within the sub-region when it comes to pricing and promotion of destinations.
In addition, the significance of seasonal variations in the estimated models calls for diversification and other innovative strategies by both service providers and destination marketers in China in an effort to minimise redundancy in low seasons.
Among the five long-haul source markets, tourist arrivals from Australia are expected to experience the highest growth rates over the forecasting period. Most of the source markets in the Western Hemisphere are predicted to record slow growth rates, with the German market experiencing the slowest growth. Considering the fact that the demand for China’s tourism is highly income elastic, this trend could be attributed to the global financial crisis which is projected to affect GDP in those countries. Policy makers and tourism service providers in China need to consider creative ways to make up for the expected sluggish growth from these source markets. The generic strategies and diversification approaches employed would be very crucial in the quest for achieving the UNWTO target of China becoming the largest tourist country and the fourth largest for overseas travel by 2020.
The forecasts have a few limitations; however, because of the high income elasticity of China’s tourism, the accuracy of the forecasts depends very much on the accuracy of projected GDP. Considering the uncertainties about the recovery process of the global financial crises, the real GDPs can vary. This may subsequently affect the accuracy of the forecasts though the models may be valid. Also, any unforeseen event in the near future could have an effect on the performance of the models since they were not considered in the forecasting process. The above forecasts were generated using econometric models based on the historic trends of tourism demand in China over a period of 22 years (1988–2009). The results are, thus, vulnerable to the potential problem of small sample bias.
