Abstract
This study models overall and bilateral tourism competitiveness in small Pacific island countries (PICs), namely, Cook Islands, Fiji, Tonga, Samoa and Vanuatu. The pooled mean group approach, which corrects for cross-sectional dependence and non-stationarity, is used for estimation with quarterly data from 2002 to 2019. The findings indicate that for Fiji and Vanuatu, other PICs are competing destinations and that Fiji and Vanuatu face the strongest bilateral competition amongst the selected PICs. Cross-price elasticities are insignificant for Tonga and are generally negative for the Cook Islands and Samoa. Thus, while for Fiji and Vanuatu, the Cook Islands is a competing destination, Fiji and Vanuatu are complementary destinations for the Cook Islands. Therefore, destinations that more closely resemble each other face stronger competition, and the nature and strength of competitive behaviour between two destinations are different for each concerned destination.
Keywords
Introduction
Tourism competitiveness is a key element of tourism demand (Pashardes and Sinclair, 2005). The multi-dimensionality of tourism competitiveness has important implications for the development of tourism infrastructures such as airports, telecommunications and transportation networks (Andereck et al., 2005), and the preservation of historical buildings and archaeological sites (O'Connell, 1998). Because competitiveness relative to other destinations depends in part on the natural, built and social environment of the country, these elements become increasingly important for destination competitiveness (Pashardes and Sinclair, 2005). This study assesses overall and bilateral tourism competitiveness in selected PICs namely, Cook Islands, Fiji, Tonga, Samoa and Vanuatu using the pooled mean group (PMG) approach. The microeconomic demand theory serves as the theoretical foundation for this study.
Research on relative price competitiveness is important because it plays a role in determining tourism demand from different countries (Pashardes and Sinclair, 2005). Tourism competitiveness helps policymakers isolate each country’s comparative advantage and identifying the tourism product which contributes most to revenue (Pashardes and Sinclair, 2005). This assists in firms’ pricing and investment decisions concerning the tourism product and governments in planning the location and scale of tourism infrastructure (Pashardes and Sinclair, 2005). Tourism competitiveness helps plan marketing strategies. With non-competitive behaviour, tourism planners can collaborate to improve tourism performance through joint marketing campaigns (Li et al., 2005). Understanding PICs’ tourism competitiveness is important because of their huge dependence on tourism for growth and because they have been severely weakened by the travel restrictions resulting from COVID-19. Their tourism industries are unlikely to revive fully by 2021/22 (c.f. Singh et al., 2021). As of April 2021, Fiji is experiencing a second wave of the more transmissible B1617/delta variant of COVID-19. Any tourism sector recovery plan will therefore require a careful evaluation of tourism competitiveness and demand elasticities.
Source market specific (SMS) models for PICs have been developed by Kumar et al. (2020) using the ARDL approach. However, SMS models have limited use in macroeconomic policy formulation due to the potential of heterogeneity in demand elasticities across source markets (elasticity heterogeneity hereafter) per destination (c.f. Peng et al., 2015). Elasticity heterogeneity implies that changes in macroeconomic conditions can have dissimilar effects on each source market. This makes overall macroeconomic policy formulation, for example, on tourism competitiveness, or monetary policy’s effect on tourism difficult. Although analysing different source markets separately has the advantage of more fine-grained and targeted policies when elasticities differ, 1 overall models are better suited for macroeconomic policy formulation by presenting an overall picture of tourism demand. We develop overall tourism demand models using the PMG technique. Following Dogru et al. (2021) on panel data methods in tourism demand, appropriate attention is paid to issues such as cross-sectional dependence, non-stationarity and dynamic effects for robust outcomes.
Selected key indicators of PICs.
Source: World Banks’ WDI database and World Data Atlas, respective Central Bank’s quarterly reviews, and Ministry of Finance and Bureau of Statistics, and national tourism organization updates, World Travel and Tourism Council.
The key contribution of the study is the application of the pooled mean group approach to address the cross-sectional dependence and non-stationarity problems in panel data and the estimation of overall tourism demand (c.f. Dogru et al., 2021). The findings are important for strategic planning of tourism resources to maximize tourism revenue and the development of tourism sector recovery plans. We distinctly use the PMG technique to develop overall tourism demand models for the PICs, which to our knowledge no other research has done. The theoretical implication of the results is that demand elasticities can vary significantly across source markets which creates the need for panel estimates. Similar destinations face stronger competition, and the competitive relationship between two destinations can be different for each of the concerned destinations. A further implication is that cross-sectional dependence and non-stationarity need to be addressed for reliable elasticities and inference.
Literature review
A detailed exposition of the evolution of tourism demand modelling is in Song et al. (2019). Tourism demand is modelled with either the econometric, time series or artificial intelligence models. This review focuses on econometric models because they provide estimates of demand elasticities, consolidate knowledge and test the predictions of theories (Song and Li, 2008). Econometric models focus on establishing the structure of causality and determining how various explanatory variables affect tourism demand (Song et al., 2019). Econometric models begin by specifying a potential causal relationship as supported by theory and proceed to eliminate insignificant explanatory variables (Song et al., 2019). Song et al. (2019) report that 111/211 (52.61%) of the published research on tourism demand between 1968 and 2018 have used econometric models. Modelling tourism demand is still evolving with recent developments progressing towards mixed frequency (Zhang et al., 2021; Wen et al., 2021; Nguyen and Valadkhani, 2020) and panel data methods (Dogru et al., 2021). Panel data incorporate information on both intertemporal movements and cross-sectional heterogeneity of the tourism demand data (Song et al., 2019). This allows researchers to capture information that cannot be captured with time series and cross-sectional models without risking multicollinearity or reducing degrees of freedom.
Panel data models have been applied in the tourism demand literature. Fixed and random effects was applied by Seetaram and Dwyer (2009) who find that immigration is a major determinant of Australian inbound tourism from its nine key source markets. Kusni et al. (2013) find that tourism prices, the SARS pandemic and the global financial crisis are important determinants of tourism demand for Malaysia using the fixed effects model. Long et al. (2019) also find that the fixed effects model improves the forecasting capacity of tourism demand over the pooled least squares in Chinese provinces. Panel fully modified least squares (FMOLS) was applied by Dogru et al. (2017) and Ulucak et al. (2020) in Turkey. Dogru et al. (2017) find including prices and exchange rates separately results in misleading outcomes and that the industrial production index is not a good proxy for tourist’s income. Ulucak et al. (2020) find that tourism is generally income and price inelastic in Turkey. This highlights that although international tourism is generally considered a luxury product (Inchausti-Sintes et al., 2021), for some destinations, it is a necessity (Waqas-Awan et al., 2021). The system GMM (SGMM) method is applied by Li et al. (2017) who find that tourism in 19 major Chinese cities is impacted by climatic factors, and by Muryani et al. (2021) who find that per-capita income, relative prices and room availability positively affect tourism demand in Indonesia. Kumar and Kumar (2020) estimate the tourism demand model for the top nine tourist destinations using the gravity model and the PMG technique and find that ICT positively impacts tourism demand.
Dogru et al. (2021) suggest that research with panel data should consider the effects of cross-sectional dependence, non-stationarity and slope heterogeneity. Cross-sectional dependence implies that a shock occurring in one unit affects other units in the panel and has important implications for stationarity testing and estimation of long-run parameters. Sarafidis and Robertson (2009) show that the moment conditions, and hence, estimates derived from standard dynamic panel techniques such as GMM are invalid with cross-sectional dependence, and this holds for any lag length of the instruments used. Another shortcoming is the use of static panel regressions. Tourism demand is fundamentally dynamic as a tourist’s former experience can affect current tourism demand through repeat visitation and/or word-of-mouth (Dogru et al., 2021). The SGMM estimator is the most common dynamic panel data method employed in tourism demand. However, the approach may suffer from an over identification bias in panels where the time series component exceeds the number of cross-sections, and non-stationarity may lead to weak instruments (Dogru et al., 2021). Panel research on tourism demand seldom applies stationarity tests, and estimates assuming stationarity may violate the Gauss–Markov assumptions (Dogru et al., 2021). Slope heterogeneity indicates that slope coefficients are different across cross-sectional units. The choice of the appropriate methodology applied thus depends on, among other reasons, the characteristics of the dataset. However, elements such as cross-sectional dependence, non-stationarity and slope heterogeneity are important considerations (Dogru et al., 2021).
Estimating the cross-price elasticity helps ascertain the nature of the competition between destinations. Research provides mixed evidence on tourism competitiveness. Through a meta-analysis of tourism demand elasticities in 195 studies published between 1961 and 2011, Peng et al. (2015) suggest that most destinations tend to be competitors. A significant and positive cross-price elasticity indicates a substitution effect and strong competitors for a destination. Li et al. (2005) however note that different degrees of substitution may emerge by assessing the bilateral relationship between destinations. The implication in this setting is to adopt appropriate strategies based on attributes specific to competing destinations or to focus on differentiated market segments to benefit from their comparative advantages. However, Li et al. (2005) also note that two destinations in geographic proximity can also benefit from each other as tourists are more likely to package such destinations into a single trip. Empirical evidence that Greece and Italy were regarded as complementary destinations by United Kingdom tourists was provided by Lyssiotou (2000) and Li et al. (2004). According to Li et al. (2005), when complementary effects are in place, the destinations involved should consider launching joint marketing programmes to maximize tourism sector performance.
Summary statistics of the Pacific island countries
Table 1 describes selected key indicators of the PICs. Real GDP per capita is the highest (lowest) in the Cook Islands (Vanuatu) amongst the selected PICs. Average inflation rates amongst the PICs have been below 4% from 2002 to 2019 (Table 1). Cook Islands was the fastest growing country relative to other PICs and recorded an average of 3.73% growth in real GDP. Key source markets for the PICs are short-haul markets Australia and New Zealand (Table 1). About 75% of the tourists visit Fiji, Cook Islands and Vanuatu for holiday. For Tonga and Samoa, a relatively even share of tourists are noted for holidays and visiting friends and relatives (Table 1).
Theory, model and methods
Demand elasticities
Theoretical insights are drawn from microeconomic demand theory. The effect of a change in price
The substitution effect is negative with convex indifference curves because an increase in
Similarly, the price of
Goods
We thus observe the following three theoretical restrictions on demand elasticities
The Slutsky restrictions indicate that a positive income elasticity must be accompanied by a negative price elasticity although there are no restrictions on price elasticities with negative income elasticities. The income elasticity of zero suggests that the price elasticity must be unconditionally negative. However, external effects on the utility can be derived from the consumption of
Model
The model specification is drawn from Song et al. (2003) which gives us
The tourism price indicator is computed as
To assess overall tourism competitiveness, the substitute price is calculated as follows
Bilateral competitiveness is assessed using the ratio of the CPI to exchange rates of the selected competing PIC destination with reference to the USD.
Taking the log of equation (6), we get the basic long-run model for estimation
We expect that
Seasonality test
Seasonality reflects the pursuit of climatic and non-climatic seasonal factors such as sunshine and beaches and factors such as school and public holidays (Ridderstaat et al., 2014). Seasonality relates to concurrent seasonal changes in other economic variables with which the dependent variable interacts (Thomas and Wallis, 1971). We use the US Census Bureau’s X-13 ARIMA-SEATS method to test for seasonality in visitor arrivals which tests for stable and moving seasonality. Seasonality testing is important because seasonality dummies are appropriate under stable seasonality only (Ridderstaat et al., 2014).
Structural breaks
Tourism demand is affected by structural events such as financial crises and pandemics (c.f. Smeral, 2017). We include structural breaks to control for the effects of the 2007/08 global financial crisis. To control for the effects of pandemics in our sample, we focus on whether the pandemics may have affected the PICs’ key source markets. As a result, we control for the effect of the 2002/03 SARS-CoV-1 pandemic and the 2009 H1N1 swine flu pandemic. The dummy variables are set to one for the period the hypothesized break occurs.
Panel data methods
To test for the presence of unit roots in the data, we first test for cross-sectional dependence (Pesaran, 2007). Traditional panel unit root tests which do not control for cross-sectional dependence may have severe size distortions (O’Connell, 1998). Pesaran (2007) shows that although orthogonalization procedures to eliminate cross-sectional dependence are an alternative, augmenting the standard augmented Dickey-Fuller test regression with cross-sectional averages of the lagged level and first difference variables yields similar, asymptotic results. To examine unit roots, we use Pesaran (2007) cross-sectional dependence robust CADF unit root test. This test is conducted by estimating with OLS, the following equation
We invoke the Pedroni (2004) panel-based Engle–Granger cointegration test. This test performs an ADF unit root test on the residuals of the estimated level model in equation (7)
We apply the pooled mean group approach of Pesaran et al. (1999) for estimation. The model is specified below
The PMG is a panel ARDL model which is estimated with the maximum likelihood approach and allows for unrestricted short-run slope heterogeneity like the Mean Group estimator, but long-run parameters remain the same across cross-sections like the fixed effects estimator. Pesaran et al. (1999) show that the poolability of long-run coefficients has valid theoretical foundations. The advantages include PMG’s ability to provide robust estimates with cross-sectional dependence, and it can be applied with a mixture of
Data and results
Data
Visitor arrivals data, price, income and substitute prices for each destination from each key source market are pooled together to derive the panel dataset required for estimation. Australia, New Zealand, the United States, Canada, Europe, United Kingdom and Japan are source markets considered for Fiji. Source markets for the Cook Islands include Australia, New Zealand, the United States, Canada and Europe. For Vanuatu, source markets include Australia, New Zealand, the United States, Europe and Japan. For Tonga and Samoa, source markets include Australia, New Zealand and the United States Source markets are considered to depend on the availability of data. Given data availability, we use a sample from 2002Q1 to 2019Q3 for Fiji (497 observations), the Cook Islands and Vanuatu (355 observations each), 2002Q1 to 2017Q4 for Tonga (192 observations) and 2002Q4 to 2019Q3 for Samoa (204 observations).
Fiji visitor arrivals data are from the Reserve Bank of Fiji’s quarterly reviews from 2002Q1 to 2020Q1. For the Cook Islands, the Ministry of Finance and Economic Management, tourism and migration statistics provide arrivals data from 1993Q1 to 2020Q1. For Vanuatu, the Vanuatu National Statistics Office international arrivals statistics and tourism news archives provide arrivals data from 2002Q1 to 2019Q4. The National Reserve Bank of Tonga’s quarterly bulletin provides arrivals data for each source market from 1995Q1 to 2017Q4 and 2019Q1 to 2020Q1. Source market-level arrival data were not available in 2018 for Tonga. Samoa Bureau of Statistics, migration statistics provides arrivals data from 2002Q3 to 2019Q3. Total arrivals for the Solomon Islands are sourced from the Central Bank of Solomon Islands and are available from 1997Q1 to 2019Q4.
Fiji CPI data are from the Reserve Bank of Fiji’s quarterly reviews from 2002Q1 to 2020Q1. For the Cook Islands, the Ministry of Finance and Economic Management provides CPI data from 1993Q1 to 2020Q1. The Vanuatu National Statistics Office, CPI quarterly movement provides CPI data for Vanuatu from 1998Q1 to 2020Q1. For Tonga, the National Reserve Bank of Tonga’s quarterly bulletin provides CPI data from 1999Q1 to 2020Q1, from the Samoa Bureau of Statistics for Samoa from 2005Q1 to 2020Q1, and from the Central Bank of Solomon Islands, Honiara retail price index from 2002Q1 to 2020Q1. CPI data for the source markets are sourced from the OECD (2021) main economic indicators, available at the Federal Reserve Economic Data (2021) (FRED) database, from 1960Q1 to 2021Q1. The base period for all CPI series was 2015Q1.
Gross domestic product data for Australia are sourced from the Australian Bureau of Statistics (2021), Australian National Accounts from 1959Q3 to 2021Q1. Data for New Zealand are sourced from the Reserve Bank of New Zealand (2021), Gross Domestic Product from 1987Q2 to 2021Q1. Data for the USA are sourced from the US Bureau of Economic Analysis (2021), Gross Domestic Product from 1947Q1 to 2021Q1. Data for Germany, Canada, UK and Japan are sourced from the OECD (2021) main economic indicators, available on the FRED database over the desired period.
Data for bilateral exchange rates (nominal), with reference to USD, are obtained from the OECD (2021) main economic indicators, available on the FRED database for the source markets. Exchange rate data for PICs are obtained from the Exchange Rates United Kingdom (2021) database. Arrival data for Fiji from Europe are not available from 2006Q1 to 2006Q4 and is interpolated for each quarter using the automatic log-linear interpolation method. Samoa’s CPI data from 2002 to 2004 are converted to the quarterly frequency with annual data sourced from the World Development Indicators using the quadratic average conversion approach. Total arrivals data for Samoa are not available from 2002Q1 to 2002Q3. Because these data are needed to compute substitute prices, the quadratic sum approach is used to convert the annual arrivals in 2002 to quarterly to derive the data series from 2002Q1 to 2002Q3. Shahzad et al. (2017) suggest that the quadratic approach of frequency conversion produces reliable decompositions of the data.
Seasonality
X-13 ARIMA-SEATS seasonality test.
Source: Estimated in EViews 12. A-seasonality at 1%.
Cross-sectional dependence, unit roots and cointegration
Pesaran’s cross-sectional dependence test.
Source: Estimated in EViews 12. A-cross-sectional dependence at 1%. p-value in [.].
Pesaran’s CADF unit root test.
Source: Estimated in Stata 16. A-indicates stationarity at 1%. p-value in [.].
Pedroni panel cointegration test results.
Source: Estimated in EViews 12. A-cointegration at 1%. p values in [.]. The test assumes no deterministic trend. One lag is used in the cointegration test.
Long run and short run
Fiji.
Source: Estimated in EViews 12. A, B, C-significance at 1, 5, 10%. Standard errors in [.].
Cook Islands.
Source: Estimated in EViews 12. A, B, C-significance at 1, 5, 10%. Standard errors in [.].
Vanuatu.
Source: Estimated in EViews 12. A, B, C-significance at 1, 5, 10%. Standard errors in [.].
Tonga.
Source: Estimated in EViews 12. A, B, C-significance at 1, 5, 10%. Standard errors in [.].
Samoa.
Source: Estimated in EViews 12. A, B, C-significance at 1, 5, 10%. Standard errors in [.].
Overall cross-price elasticity is positive and significant for Fiji and Vanuatu; thus, the other PICs can be considered as competing destinations. The implication is that growth in tourism in competing destinations may come at the detriment of Fiji’s tourism sector. Capturing this market may require tourism policymakers to differentiate the tourism product through value-adding products to entice tourists to spend a greater proportion of their holidays in Fiji and Vanuatu, respectively. Bilateral estimates reveal that Fiji faces the strongest competition with Vanuatu, followed by Samoa, Tonga and the Cook Islands. Vanuatu on the other hand faces the strongest competition from Fiji followed by Tonga, Samoa, Solomon Islands and the Cook Islands. Fiji and Vanuatu face the strongest bilateral competition because they are more similar to each other compared to the other destinations. Song et al. (2003) claim that substitute destinations should be similar in terms of culture and geography. Being both Melanesian countries with a noticeably warmer climate, Fiji and Vanuatu are more similar to each other than the other PICs.
Cross-price elasticities are insignificant for Tonga. This suggests that Tonga is not in active competition with the rest of the PICs. This could be because their tourism sector is still relatively small (Table 1) and developing and a sizeable share of tourists travel to Tonga to visit friends and relatives. Thus, Tonga’s tourism sector evolves independently of tourism in other PICs. Bilateral cross-price elasticities are negative and significant for the Cook Islands from Fiji, Vanuatu, Tonga, and Samoa. Overall cross-price elasticity is negative for Samoa and is negative for Fiji, Cook Islands and Vanuatu indicating complementary behaviour. Thus, while for Fiji and Vanuatu, Cook Islands is a competing destination, the relationship is complementary for the Cook Islands. The same can be argued for Fiji-Samoa and Vanuatu-Samoa. With complementary behaviour, Li et al. (2005) suggest that the destinations involved should launch joint marketing campaigns. However, policymakers in Fiji and Vanuatu may be cautious of such policies as the Cook Islands is their competitor.
The results echo the earlier findings of Pratt (2013) who surveyed the distinguishing attributes of PICs considered by Australian tourists such as repeat visitation, beaches, and beautiful scenery, and weather/climate. Fiji and Vanuatu are perceived as close competitors and closely associated with as a tropical island destination with positive feedback either from word-of-mouth, advertising or previous visits (Pratt, 2013). The Cook Islands is not strongly linked to any particular attribute that distinguishes its destination image (Pratt, 2013) which agrees with the insignificant cross-price elasticity estimate (Table 7). Pratt (2013) further notes that Samoa and Tonga are close bilateral competitors. Yet, our results suggest otherwise because substitute prices between Tonga and Samoa are insignificant (Tables 9 and 10). Overall, however, many attributes are shared by the PICs which can complicate research on destination competitiveness (Pratt, 2013).
Conclusion, policy implications and research outlook
This study tests for tourism competitiveness in small Pacific island countries using quarterly panel data over the period 2002–2019. Estimations were done using the pooled mean group approach. The findings imply that for Fiji and Vanuatu, other PICs are competing destinations. Fiji and Vanuatu face the strongest bilateral competition amongst the PICs. Cross-price elasticities are negative and significant for the Cook Islands and Samoa and insignificant for Tonga. Thus, while for Fiji and Vanuatu, Cook Islands is a competing destination, the relationship is complementary for the Cook Islands. The results suggest that the nature and strength of competition are different for each concerned destination.
For tourism competition policy, targeted marketing campaigns need to be developed to tap into the source market pool of tourism in PICs. For example, the key source market for both Fiji and Vanuatu is Australia, and Fiji and Vanuatu both have strong bilateral competition with each other. Policymakers in Fiji and Vanuatu could then devise marketing campaigns targeted especially for Australian tourists. Policy planners in Tonga should focus on developing their distinct brand of tourism as a niche market. Samoa and Cook Islands on the other hand generally have negative cross-price elasticities. Thus, policymakers there need to collaborate with their counterparts in other PICs to sustainably develop their tourism sector such as through joint marketing campaigns, or developing direct, visa-free flight routes. One example is to develop a direct travel route from Fiji to the Cook Islands, without requiring the passenger to transit in Auckland. 4 A regional partnership, such as the South Pacific Tourism Organization (SPTO) can also play a pivotal role in regional tourism development.
Demand elasticities are also important for macroeconomic policy formulation. Because tourism demand is determined by financial market indicators such as prices and the exchange rates, monetary policymakers need to be aware of how any policy action may impact prices, and subsequently, tourism. For example, an unwarranted expansionary monetary policy may create inflationary pressure which could reduce arrivals. For competing destinations, this will lead to an increase in arrivals as tourists now choose to travel to relatively cheaper destinations. The implication is that monetary policymakers need to devise policies keeping in mind how their policies may impact tourism, which is a key driver of growth for PICs. Macroeconomic policymakers also need awareness of macroeconomic policy in other PICs as this impacts their tourism demand.
Data limitations were noted. CPI data for Samoa were not available over the period 2002Q1–2004Q4. Annual data from the World Bank were converted to quarterly using the quadratic average approach. Total visitor arrivals data for Samoa were not available from 2002Q1 to 2002Q3. Annual data from the World Bank were converted to quarterly using the quadratic sum approach. Visitor arrivals data from Europe to Fiji were not available from 2006Q1 to 2006Q4 and was interpolated using the log-linear interpolation approach. The discussion of price and income in demand theory assumes a specific product. Derivation of demand elasticities assumes that the nature or quality of the product does not change. This may not be entirely valid for tourism demand. Future research can thus examine time-varying demand elasticities to bypass this shortcoming. As identified by Song et al. (2019), methodologies used to estimate tourism demand models are still evolving. Although this study has demonstrated the usefulness of panel data techniques in modelling tourism demand, future research could predict tourism demand using Bayesian structural time series methods.
Footnotes
Declaration of conflicting interests
The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The author(s) received no financial support for the research, authorship, and/or publication of this article.
