The below draws on Korean-language reporting and academic sources. I’ve kept it focused on political dynamics inside Busan City Hall (부산광역시청) and its relationship with South Gyeongsang Province (경상남도), with the structural macro factors (i.e., Seoul’s popularity) only as context.

The structural backdrop: capital-region monopolization

The single biggest force is something Busan politicians can complain about but cannot solve: the greater Seoul capital-region concentration (수도권 일극화). Every national administration since the early 2000s has announced a “balanced development” (균형발전) program, and every one has watched the gap widen. The Busan Ilbo (부산일보) editorial board put it bluntly: slogans about a “regional era” get repeated each time power changes hands, but the playing field tilted toward the capital region has only become steeper, and residents have repeatedly had to endure “hope torture.”

Lee Jae-myung’s (이재명) administration has explicitly recognized this — at his June 2025 press conference he argued that going beyond mere “consideration for the regions” in policy and budget allocation, the country needs a “regions-first” policy, and floated regional weighting in fiscal transfers — but the structural pull of Seoul is mostly outside the Busan mayor’s control. (Source: Busan, NewsTomato)

What that pull looks like on the ground for Busan: 2025 per-capita GRDP of 37.08 million won, 16th of 17 cities/provinces, with manufacturing production (51 trillion won) and value-added (17 trillion won) at roughly half the national average. From 2020 onward youth net outflow has shifted from being absorbed by Gyeongnam (경남) to being absorbed by the capital region. (Source: Sedaily, Namu Wiki)

Failures inside Busan City Hall (부산시청)

The 2030 Expo (2030 부산세계박람회) collapse. This was the headline failure of the current administration. Busan lost 29-to-119 to Riyadh — a quadruple-score defeat, not a close miss. The post-mortem published by the city itself is unusually candid about who is to blame. According to the official Busan City white paper, excessive optimism from the presidential office spread so widely that it became difficult to offer realistic, objective forecasts, and the division of roles among central government, the city, and the private sector was never properly unified, so information sharing and strategic coordination broke down. The Namuwiki summary lists, among the causes, failure to build domestic consensus, excessive optimism from the government and ruling party, diplomatic failure, scattered advertising fronted by celebrities like Lee Jung-jae, and the now-infamous presentation that closed with an 11-year-old Gangnam Style backing track. The cost to Busan was not only the lost event but the damage to its reputation for hosting capacity. (Source: Knn, Namu Wiki)

The Park Hyung-jun (박형준) administration’s broader record.

Park’s second term, currently winding down, gets poor marks even from sympathetic outlets. The Busan Ilbo’s January 2026 polling write-up attributes the negative sentiment specifically to a failure to produce short-term, tangible results that citizens could actually feel, despite the mayor citing various performance numbers to argue Busan was developing. Namuwiki’s entry on Park is sharper: across four years of administration there were no visible achievements, and after the most important objective — the 2030 Busan Expo bid — was lost by an even larger margin to Riyadh than expected, a positive evaluation was impossible, with negative ratings dominant in every generation except those in their 60s–70s. The criticisms that recur are youth outflow not stopped and weak corporate attraction. (Source: Busan, Namu Wiki)

Mayoral instability before Park.

The predecessor, Oh Geo-don (오거돈) of the Democratic Party, resigned mid-term over a sexual harassment scandal. This created an extended period of administration by a vice-mayor acting as proxy (행정부시장 권한대행), undermining continuity on big projects exactly when the Expo bid and the new airport were being scoped.

The Bu-Ul-Gyeong Mega City (부울경 메가시티) collapse — the clearest example of provincial dysfunction

This is the cleanest case study: the breakdown between Busan, Ulsan (울산), and Gyeongnam (경남). The plan was a special administrative union (특별연합) — a formal supra-regional body covering roughly 7.6 million people — designed precisely to counterbalance the Seoul Capital Area. It collapsed in late 2022.

The collapse was a political event, not an economic one.

Park Jae-uk’s (박재욱) 2024 paper in the Journal of the 21st Century Political Science Association (21세기정치학회보) documents the process: the three governors agreed at the end of 2022 to abolish the Bu-Ul-Gyeong regulations, and each provincial/metropolitan council voted through the abolition, killing the special union.

The proximate trigger was the post-2022-election political realignment: Park Wan-su (박완수) took the Gyeongnam governorship and Kim Du-gyeom (김두겸) took Ulsan, both for the People Power Party (국민의힘). The OhmyNews (오마이뉴스) reporting captures the dynamic — Ulsan released its own “practical benefit analysis” concluding the special union should be exited, with Mayor Kim Du-gyeom calling it a permanent suspension equivalent to dissolution, and 10-plus civic groups across the three regions denounced it as the result of “political calculation and a fight for regional initiative” rather than substantive policy.

Namuwiki’s encyclopedic entry on mega-cities summarizes it neatly: during planning discussions, the interests of the constituent local governments clashed, the rifts deepened, and the plan was ultimately scrapped. (Source: Korea Citation Index, OhMyNews, NamuWiki)

The Bu-Ul-Gyeong rivalry is not new — there are long-running fights over the Busan New Port (부산신항), the Busan-Gyeongnam horse racing park (부산경남경마공원), and even intra-regional city bus routes (the Busan–Geoje bus dispute being a recurring example). These frictions are persistent enough that proposals to either fully merge Busan-Ulsan-Gyeongnam into one Southeastern Special Union, or to annex commuter-shed parts of Gyeongnam like Yongwon and Ungsang into Busan and elevate Busan to special-city status, keep resurfacing as solutions to administrative-boundary-driven conflict. Changwon (창원), which sits in Gyeongnam, also competes directly with Busan for industrial investment and has its own special-city ambitions; its population dropped below the 1 million special-city threshold in December 2024, making the rivalry sharper. (Source: Namu Wiki)

The Gadeokdo Airport (가덕도신공항) — politics over engineering

This project illustrates how local political incentives produce bad infrastructure outcomes. The original technical conclusion was different. In 2016 the Paris Airport Engineering authority — a top-tier global airport verification body — judged Gimhae Airport (김해공항) to be the optimal site, and that June the decision was made to expand Gimhae. The Moon Jae-in (문재인) administration, together with the Democratic Party governors who swept the 2018 local elections in Busan, Ulsan, and Gyeongnam, then reopened the question. Last year a former district head of Gangseo-gu (강서구), the district that contains Gadeokdo, broke ranks publicly: former Gangseo district chief Noh Gi-tae (노기태) — who served as Busan Port Authority president and twice as district head, originally elected under the Saenuri Party then re-elected as a Democrat — held a press conference at the Busan city council saying the Gadeokdo airport plan was being pushed through hastily for purely political reasons, that he had raised concerns through multiple channels but they were dismissed for political reasons, and that “now is the time to speak the truth”. The trigger for his statement was that Hyundai E&C (현대건설) had withdrawn from the project, forcing plan revisions. (Source: Nate)

On the ground, KNN reporting from September 2025 documents that land-compensation disputes have led to roughly 80% of residents filing objections, the residents’ committee has split, and the second valuation is set for after Chuseok per the Central Land Tribunal. As of late 2025, neither the construction contractor nor the construction period has been set, and residents are demanding transparent, accelerated administration. This project has been the centerpiece of every Busan campaign for nearly a decade, and it remains a planning problem rather than a construction one. (Source: Daum, Knn)

The financial hub strategy (금융중심지) — a 17-year hollowing out

The 2009 designation of Busan, alongside Seoul Yeouido (서울 여의도), as a financial center (금융중심지) was supposed to be Busan’s structural answer to losing manufacturing. The Etoday (이투데이) field report from April 2026 captures the verdict: at the Busan International Financial Center (BIFC) in Munhyeon-dong (문현동), 5,000-plus daytime occupants from KRX, KAMCO, KSD, and KHFC produce business-district-level lunch crowds, but after 2 PM the “financial district” empties out and the streets go quiet — 17 years after designation, residents say they cannot feel a financial center. The structural diagnosis: financial public institutions relocated but policy and investment decisions remain concentrated in Seoul, global capital inflows are stagnant, and the area has captured only partial benefits in terms of education and employment. (Source: Etoday)

Two specific blows are now compounding this. First, last year an alternative trading system (ATS) launched in Seoul has eaten into roughly half of KRX’s main share-trading function — KRX’s Busan headquarters becomes more nominal each year. Second, a 2026 Democratic Party bill from Rep. Kim Tae-nyeon (김태년) would convert KRX into a holding-company structure and spin off KOSDAQ as a separate subsidiary, with the new KOSDAQ exchange likely to be headquartered in Seoul. The earlier diagnosis is even more damning: by the 10-year mark, the Busan Ilbo headline read “Zero private financial firms relocated to Busan — financial business ecosystem creation failure”. (Source: Busan, Kookje)

The industrial base hollowed out into Gyeongnam

This is where the inter-regional dynamic with Gyeongnam actually shows up in numbers. The Namuwiki entry on Busan summarizes the trajectory: in the pivot to tourism, the city failed to attend to its remaining manufacturing base, and west-Busan manufacturing expanded outward to Gimhae and Yangsan, and as far as Chungcheong and the capital region, leaving Busan youth with only service-sector jobs apart from finance and pushing them semi-forcibly toward the capital region.

The shipbuilding case is illustrative: Yeongdo (영도) was once the birthplace of Korea’s shipbuilding industry and the leading shipbuilding base from 1960 to the early 1970s, but as Hyundai Heavy Industries in Ulsan and Samsung Heavy Industries / Daewoo Shipbuilding & Marine Engineering in Geoje rose, Yeongdo’s marine industry declined sharply in the late 1990s, and its population fell from a 1978 peak of about 214,000 to 107,632 last month. The Namuwiki population entry confirms the pattern: from 1995 to 2020, Gimhae and Yangsan added 270,000 and 190,000 residents respectively, so the Busan metropolitan area’s population is essentially unchanged — Busan proper shrank, satellites in Gyeongnam grew. (Source: Namu Wiki, Newspim)

The 2026 mayoral campaign is now arguing over how to describe this. The Seoul Economic (서울경제) coverage of the Park–Jeon debate has both sides: Jeon Jae-su (전재수) argues Busan youth population dropped over 10% in four years while the over-65 share grew rapidly, that manufacturing and construction jobs are declining with public-service-sector employment masking the underlying weakness, and that investment-attraction performance lags the national average; Park’s side counters that youth employment growth is the highest among the eight major cities, that net youth outflow is shrinking, that the number of regular employees has crossed 1 million, and that record FDI has been attracted. Both sets of numbers can be true simultaneously — that’s the nature of “unemployment-style employment” (불황형 고용) growth. (Source: Sedaily)

At the end of the day, that’s all minutia. The macro pull of the greater Seoul capital region is the dominant factor — perhaps 60%–70% of the gap — and the political dysfunction layered on top probably accounts for the rest. The local political failures are real and they are concrete: the collapse of Bu-Ul-Gyeong; the 2030 Expo defeat; the airport planning chosen on political rather than engineering grounds; the inability to convert the financial-hub designation into a private-sector ecosystem; the Oh Geo-don resignation; and the visible drift of the Park Hyung-jun administration.

But even a perfectly executed Busan strategy would be fighting against the gravitational field of Seoul-Gyeonggi. The reason a counterweight like the Bu-Ul-Gyeong special union mattered was that it was the only proposal that could plausibly shift that gravity, and it died for ordinary inter-jurisdictional political reasons within 18 months of being agreed.

So, move to Seoul, young Busanite! It’s the future, it seems~

Note on my sources: I am confident in the major facts above (Expo vote count, 2009 financial-hub designation, the Bu-Ul-Gyeong dissolution, the Yeongdo population trajectory). But some of the specific statistical claims attributed to candidate Jeon Jae-su come from a 2026 election campaign and should be checked against primary statistics (KOSIS / 통계청), since campaign claims are often selectively framed. In particular, I can’t find a source for the “16th of 17” 2025 GRDP figure. That was just in a speech.

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