Overtourism and the impact of tourist traffic on the daily life of city residents: a case study of Poznan

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According to ranking conducted by TripAdvisor in 2019, Poznan is the fifth most popular city for tourists coming to Poland. Tourists mainly focus on the very center of Poznan – the Old Town, which is one of the most historic districts of the city. The aim of this research was to show whether Poznan is a place potentially threatened by overtourism, which affects the quality of life of its residents and negatively influences their experience of living in the city. The paper also attempts to prove that as a result of gentrification and the city’s revitalization of social spaces and socio-spatial processes, the indigenous cultural and social fabric of the city is being destroyed. The research used a comparative method, source analysis and uncategorized in-depth interviews with snowball sampling. The study showed that overtourism is not yet present in Poznan, but if the direction of tourism development in the city does not change in the coming years, overtourism could be a threat. The case of Poznan shows that its residents perceive the phenomenon of losing the benefits of everyday life in the city center and increasingly feel alien in a space with which they have been associated for years.

To Fix the Ills of Tourism, Think Like a Traffic Engineer

The travel bug is spreading. Over the last two decades, the global number of tourists has doubled from 550 million itinerant individuals in 1996, to 1.25 billion in 2016. And that upward hike has been steady. The travel industry predicts that by 2030, the number of annual tourists will reach 2 billion.

Two billion people! In line at the Louvre! Taking selfies on the Great Wall! Jostling for towel space in Tulum! Are the world’s top attractions, ready for all this traffic? The answer is loud and clear as a cruise ship’s horn rolling across Montego Bay: Noooooooooo.

The travel industry’s lack of readiness for this crush is both astounding and understandable. Overcrowding has been a problem for decades, but the problems it creates haven’t yet hit tourism’s profits. Along with the crowds come issues like environmental degradation and locals being priced out of their neighborhoods.

For some top travel destinations, however, the consequence gap could finally be closing. Japan recently clamped down on AirBnB. Barcelona has barred new hotels from opening. Venice is so impacted by tourism that Unesco is threatening to add the World Heritage city to its “in danger” list—which would put the city in the same company as Syria’s war-torn antiquities.

Most travel destinations want to continue profiting from tourists, they just don’t want to be trampled beneath them. “People are trying to get to the same place at the same time, and there’s so many of them they are clogging everything up,” says Dean MacCannell, an emeritus professor at UC Davis who spent much of his career looking at tourism. Measures that target subgroups or certain behaviors (like cruise ship passengers, hotel guests, and those so undignified, they eat while walking) are costly to enforce and have bad optics. Worse, they are short sighted efforts that tackle various symptoms without considering the bigger problem.

That’s why the folks working the doors—by which I mostly mean the governments and policy makers in charge of hotspots—ought to take a few lessons from the transportation world. Because tourists are traffic. And they can be managed as such.

Just to be clear: Transportation engineers and literature don’t have any readymade cure-alls. (You may have noticed traffic jams still exist.) What unclogs Bali won’t restore balance in Barcelona. Rather, transportation ideas offer a different mindset, one rooted in engineering and volume and flows, to places feeling trodden upon by hordes of sightseers.

Spread the Wealth (And the Pain)

Congestion happens when there’s too much demand and not enough supply. It’s bad, but also good, since it’s a literal representation of people wanting to go someplace and spend money. Which is why cities don’t tackle congestion by shutting down the highways and telling commuters to stay home.

Proactive cities manage their traffic through supply and demand. They fiddle with the prices or availability of things like roads, rails, buses, parking spots, and housing stock. A city facing a glut of suburban car congestion might increase urban parking fees to discourage people from driving in, but also pave extra lot space around its outlying metro stations to encourage more people to park and ride.

Analyzing Tourism Traffic

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An analysis of tourism data in the Pacific shows the importance of traveler wealth, distance and infrastructure on tourist arrivals.


11 May 2016

International tourist arrivals in 2014 reached about 1.14 billion worldwide, up by 4.7% from 2013. Of this, the Pacific received a 5.9% share. Tourist arrivals are forecast to grow by 5% in 2015—equivalent to an additional 547,000 international visitors (Pacific Asia Travel Association 2015). About 3% of these additional trips, or roughly 16,500 additional international arrivals, are forecast for Pacific destinations. This growth is seen to continue in the long run.

Tourism represents a dominant economic sector for a few Pacific countries (e.g., the Cook Islands and Palau), and the list of countries with the highest ratios of tourism receipts to gross domestic product (GDP) includes Vanuatu, Samoa, and Fiji (Culiuc 2014). Given the importance of tourism to many Pacific economies, it is useful to try to assess the factors driving visitor flows. In a number of recent journal articles, the gravity model, a commonly used analytical approach applied in empirical studies of trade flows, has been adapted to study visitor arrival flows.

This brief offers an initial examination of tourism flows to selected Pacific ADB developing member countries (DMCs), using an adapted version of a simple gravity model based on the estimation approach of Anderson and Wincoop (2004). It begins with an overview of the estimation model used to assess drivers of visitor flows into the Pacific. It then discusses the data used in the analysis, and concludes with a discussion of the estimation results and their implications.


Estimation model and data analyzed

This exploratory analysis considers visitor arrivals to selected Pacific DMCs—namely, the Cook Islands, Fiji, the Republic of the Marshall Islands (RMI), the Federated States of Micronesia (FSM), Palau, Papua New Guinea (PNG), Samoa, Tonga, and Vanuatu—in 1990–2014. Visitors include tourists (both overnight and longer stay visitors, and same-day visitors, cruise ship passengers), business travelers, and individuals visiting relatives. The database includes arrivals from the list of countries, divided by geographic region (see endnotes). The study generated origin–destination country pairs, which represent the unit of analysis in the estimation model to analyze the factors accounting for changes in bilateral inbound visitor arrivals to the selected Pacific destinations.

Table 1 summarizes the data on annual visitor arrivals across the Pacific DMCs studied, and shows a clear rise in average annual visitor arrivals over time. From 1990 to 2014, arrivals to the Cook Islands, Fiji, Samoa, and Tonga grew at average annual rates of 4%–6%, while those to Palau, PNG, and Vanuatu averaged growth of over 6% a year. The sharp increase in visitors to Vanuatu is notable, as strong growth in cruise ship arrivals accounted for much of the increase and represented about 70% of total visitor arrivals to the country.

Table 1: International visitor arrivals by destination (1990–2014)

Visitor arrivals Population Destination Annual average


(A) Annual average


(B) (B) / (A) Min

('000) Max

('000) 1990

('000) 2014

('000) Tourism receipts

(% of GDP), 2014 Cook Islands 50.9 97.5 1.9 34.2 121.6 17.0 18.6 59.9 FSM* 23.3 25.7 1.1 13.4 43.2 98.1 103.6 10.4 Fiji 319.6 554.2 1.7 259.4 692.6 737 866 19.7 Papua New Guinea 51.7 109.6 2.1 33.6 176.5 3,690 7,600 ... Palau* 58.7 87.6 1.5 54.1 140.8 15.1 17.7 53.8 RMI 5.5 6.0 1.1 4.6 9.0 44.5 53.8 6.4 Samoa 63.6 114.7 1.8 37.5 134.6 160.3 192.1 17.5 Tonga 26.8 40.3 1.5 20.9 50.4 96.4 103.8 10.0 Vanuatu* 91.4 197.0 2.2 77.2 352.8 147.3 271.1 36.4

Applying a gravity model suggests that visitor arrivals between country of origin and destination country are positively related to the size of their economies, and inversely related to the distance between them (Morley et al. 2014). Size is measured by the levels of economic activity in the two countries (Anderson 2011). To also account for the role of population size in driving economic exchanges between the two countries, which is particularly important in the case of visitor flows, GDP is considered in per capita terms. As in the law of gravity, the other key factor driving the force of attraction between two countries is the distance between them. Greater distance suggests higher travel cost between the countries, which should discourage visitor arrivals. The gravity model also includes characteristics of the destination country that are expected to influence visitor inflows, such as GDP per capita, land area, shared language, and colonial history, airline connectivity, disruptive events (e.g., cyclones), and major regional events. See endnotes for technical details on the estimated equation.

Estimation results

The regression results reveal that the GDP per capita of a destination country does not significantly influence visitor flows, but GDP per capita of a country of origin has a significant positive effect on visitor flows (Table 2). Consistent with the literature, higher average incomes in source markets for tourists to Pacific destinations increase the likelihood of more tourist arrivals. Visitor flows are not as sensitive as merchandise trade to changes in GDP per capita of the country of origin (Culiuc 2014).

Table 2: Maximum likelihood random-effects panel regression results

Variables 1 2 3 4 constant 7.3226*** 6.2663*** 6.0282*** 6.0804*** log(GDP/popn_ destination) 0.0588 0.0746 0.0681 0.0645 log(GDP/popn_origin) 0.7621*** 0.7276*** 0.7030*** 0.6929*** log(distance) –1.1648*** –1.0669*** –1.0740*** –1.1845*** log(land area) 0.2650*** 0.2707*** 0.2627*** 0.3538*** colonial ties 1.2878*** 1.2477*** 1.2989*** common language 0.3882 0.5037* 0.5054 number of airlines 0.1382*** >=3 airlines (dummy) 1.4250*** hosted events (dummy) –0.0401 –0.0411 cyclones –0.0284 –0.0312 Number observations 2,187 2,187 2,187 2,187 R2 0.29 0.37 0.44 0.50 Wald chi2 184.47*** 201.33*** 223.46*** 234.65***

Findings also show that greater distance tends to inhibit visitor flows, presumably because farther destinations are correlated with higher travel costs, and increase the likelihood that travelers would forgo visiting a Pacific destination in favor of competing destinations closer to home. Further, the results suggest that in difficult economic times, Australia and New Zealand travelers—who comprise the majority of visitors to the South Pacific—may increase visits to these destinations as an alternative to more expensive destinations.

Land area has a positive impact on visitor flows, suggesting that larger land area may expand the variety of activities available to tourists. Origin countries sharing colonial ties with Pacific destinations had significantly more visitors to those destinations than countries without shared history, but common language had only a slightly significant effect (Chen et al. 2014, Culiuc 2014). A common cultural heritage, shared institutional framework, as well as past commercial, family, or official ties, could positively influence levels of travel to the Pacific. It may also reflect the continued relevance of international groupings, e.g., the British Commonwealth, in driving visitor flows, such as through visa liberalization for travelers from member countries. The positive effect of shared colonial ties illustrates the way in which market interactions expand and intensify over time. The fact that history affects current visitor flows, by extension, may justify special short-term measures to develop new markets for visitors in the hope that these would grow over time.

Other variables have mixed results on visitor flows: (i) flight availability, which implies stronger competition among airlines and cheaper fares, has a positive effect; (ii) one-time events in the destination country have no significant impacts; (iii) a common language between the countries of origin and destination has little impact; and (iv) severe cyclones (category two or higher) in a Pacific destination tend not to impact significantly, likely because falls in visitor arrivals are not large enough to significantly affect annual data.


Implications of estimation results

The results yield important insights into the drivers and constraints to visitor inflows, which have important implications for Pacific countries trying to encourage more visitors.

Improving transport connectivity, especially the availability of flight options, lowers travel costs and entices more visitors. Stimulating demand for flights to the Pacific requires complementary efforts to improve the domestic infrastructure and the enabling environment for sustainable tourism in the region (ADB 2015).

The impact of strong historic ties between countries implies that efforts to develop new source markets can yield increasing visitor numbers over time, giving impetus for short-term measures to encourage visitors from countries outside the region.

This analysis used a fairly limited set of variables to explore the determinants of visitor flows into the Pacific, and many additional variables merit further study. Firstly, it would be useful to study the impact of the quality of public infrastructure and private facilities available to visitors. Common wisdom notes the importance of addressing capacity and infrastructure constraints in destination countries to meet higher demand from prospective visitors (World Travel & Tourism Council 2015). Secondly, because cruise ship arrivals to the Pacific have grown nearly fivefold since 2004, it would also be useful to explore the impact of port facilities. Thirdly, the role of ICT infrastructure in driving visitor flows could also be examined. Access to online booking systems and social media platforms highlighting various sites and activities available in a country of destination appear to be vital in present-day efforts to promote and develop tourism services (ADB and ADBI 2015).


The estimated gravity equation is

GDP/popnjt serves as a proxy for the variety of products in country j (Chen et al. 2014), and is derived from each country’s real GDP at constant 2005 US dollars and the midyear population, and allows the model to measure the income elasticity of visitor inflows to the Pacific. Dij refers to geographic distance and serves as proxy for the cost of travel from country i to country j. Head and Mayer (2002) provide detailed information on the methodology used to calculate geographic distance.

The estimation model also includes vectors of the host country’s time-invariant (Xj) and time-varying (Xjt) characteristics expected to influence visitor inflows. Time-invariant characteristics of the destination country j (Xj) considered are land area, shared language, and common colonial history. Additional time-varying characteristics of country (Xjt) considered in the model measure connectivity (flight availability), disruptive events (e.g., cyclones), and instances of countries hosting major regional games.

There is considerable room to add other variables of interest to the estimation equation. Similarly, more precise measures of travel cost, supply of tourism facilities, infrastructure quality, and ease of doing business—particularly ease of entry and exit—are other factors that would be worthwhile to assess in a gravity model. These are left for future research efforts due to time constraints in the initial analysis being presented in this brief. Refinements to the estimation approach are also available to address endogeneity in the model, but results from this introductory analysis are nonetheless illustrative.

Economies included in the dataset: American Samoa; Australia; Austria; Bangladesh; Belgium; Canada; Chile; the People’s Republic of China; Cook Islands; Denmark; Fiji; Finland; France; French Polynesia; Germany; Guam; Hong Kong, China; India; Indonesia; Israel; Italy; Japan; Kiribati; The Netherlands; Malaysia; Federated States of Micronesia; Nauru; Nepal; New Caledonia; New Zealand; Northern Mariana Islands; Norway; Pakistan; Palau; Papua New Guinea; the Philippines; the Republic of Korea; the Russian Federation; Samoa; Singapore; Slovenia; Solomon Islands; South Africa; Spain; Sri Lanka; Sweden; Switzerland; Taipei,China; Thailand; Tuvalu; the United Kingdom; the United States; Vanuatu; and Viet Nam.


J. E. Anderson. 2011. The Gravity Model. Annual Review of Economics. Annual Reviews. 3 (1). pp. 133160.

J. E. Anderson and E. van Wincoop. 2004. Trade Costs. Journal of Economic Literature. 42 (3). pp. 691–751.

S. Arita, S. La Croix, C. Edmonds, and J. Mak. 2011. Impact of Approved Destination Status on Chinese Travel Abroad. Tourism Economics. 17 (5). pp. 983–996.

H. Chen, L. Rauqeuqe, S. R. Singh, Y. Wu, and Y. Yang. 2014. Pacific Island Countries: In Search of a Trade Strategy. IMF Working Paper WP/14/158. Washington, DC: International Monetary Fund.

A. Culiuc. 2014. Determinants of International Tourism. IMF Working Paper WP/14/82. Washington, DC: International Monetary Fund.

T. Lorde, G. Li, and D. Airey. 2015. Modeling Caribbean Tourism Demand: An Augmented Gravity Approach. Journal of Travel Research. 30 June. pp. 1–11.

T. Mayer and K. Head. 2002. Illusory Border EW ects: Distance Mismeasurement Inflates Estimates of Home Bias in Trade. Working Paper 200201. CEPII Research Center.

C. Morley, J. Rossello, and M. SantanaGallego. 2014. Gravity models for tourism demand: theory and use. Annals of Tourism Research. Vol. 48. pp. 1–10.

Asian Development Bank (ADB). 2015. Asian Development Outlook 2015: Financing Asia’s Future Growth. Manila: ADB.

ADB and Asian Development Bank Institute (ADBI). 2015. Pacific Opportunities: Leveraging Asia’s Growth. Asian Development Bank and Asian Development Bank Institute. Manila.

Pacific Asia Tourism Association. 2015. Asia Pacific Visitor Forecasts 2015–19. Bangkok.

World Travel and Tourism Council. 2015. WTTC Travel & Tourism Economic Impact. London.

Related link

Policy Brief: The Determinants of Visitor Arrivals in the Pacific: A gravity model analysis (originally published in the Pacific Economic Monitor, December 2015)

Christopher Edmonds

Christopher Edmonds managed ADB’s economics research for the Pacific, and oversaw the flagship Pacific Economic Monitor publication. He provided economic inputs to ADB’s various loan operations and programming efforts for the Pacific. Follow Christopher Edmonds on

Benjamin Radoc

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Disclaimer The views expressed on this website are those of the authors and do not necessarily reflect the views and policies of the Asian Development Bank (ADB) or its Board of Governors or the governments they represent. ADB does not guarantee the accuracy of the data included in this publication and accepts no responsibility for any consequence of their use. By making any designation of or reference to a particular territory or geographic area, or by using the term “country” in this document, ADB does not intend to make any judgments as to the legal or other status of any territory or area.

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