Rust Belt Cities reborn?

Rust Belt cities reborn? – The one-handed economist Guest Post by Student Sara

Pittsburgh and Detroit, known as Rust Belt cities because of their proximity to areas of heavy manufacturing, were two of the wealthiest American cities in the 20th century (Warda, 2016). Yet today, while one city is said to be a model for re-emerging sustainable cities (Mewawalla, 2024), the other is referred to as the worst case of urban decay in US history (Warda, 2016). The cities have comparable origins, and both attribute their wealth to specialisation, so what has led them down such different trajectories? What went wrong? Or perhaps more importantly, what went right?

Pittsburgh grew in the 1900s due to its favourable location at the confluence of two rivers, making it a unique trading hub with access to the Atlantic coast and the Midwest (Wikipedia, 2025). Eventually, thanks to Andrew Carniege, Pittsburgh became the “Steel City”, home to U.S. Steel, and produced close to half of America’s steel at the time (Mewawalla, 2024). However, as the city experienced deindustrialisation in the 90s, Pittsburgh was forced to diversify (Wikipedia, 2025).

Detroit, on the other hand, specialised in the automotive industry in the early 20th century and became known as the “Motor City” (Briscoe, 2024), home to the “Big Three” of car manufacturers, General Motors, Ford and Chrysler (Wikipedia, 2025). However, faced with foreign competition in the 50s and 60s, car manufacturers began relocating their factories to minimise production costs, while up and comers gained market share (Warda, 2016). Meanwhile, being the most segregated city in America from the 50s to the 70s, racial tensions contributed to declining social cohesion in Detroit (Briscoe, 2024).

So how have the Rust Belt cities fared, since being confronted with the dilemma of diversification? Put simply, only one managed to diversify in time. The Steel City diversified, becoming a frontrunner in health care, education and AI (Wikipedia, 2025) while embracing its “industrial heritage” (CityTalk, 2017) and modelling partnerships between the public and private sector (Fineman, 2010). In fact, Pittsburgh enjoys the title of being one of the most liveable cities in the US (Wince-Smith, 2014). Contrastingly, the Motor City, having failed to diversify in time, lags behind. The decline of the automotive industry induced high levels of unemployment and emigration (Briscoe, 2024), leading to a 61.4% decrease in the city’s population from the 1950 to 2010 and hence, a declining tax base (ELGP, n.d.). These factors, among others, contributed to the city having to declare an 18 billion USD bankruptcy in 2013 (Briscoe, 2024).

Since then, Pittsburgh has continued to grow as a hub for high-tech innovation (Wince-Smith, 2014), but Detroit’s rebirth is also on the horizon, with its population having grown for the first time in 66 years in 2023 (Harding, 2024). Still, urban renewal has been slow, as investment has flowed primarily from the private sector (Ager, n.d.), been limited to downtown (ELGP, n.d.), and revitalisation programs do not effectively represent the needs of the most vulnerable populations (Hill, n.d.).

So how could the present prosperity of two historically similar cities be reconciled? Can Detroit learn from Pittsburgh’s success?

Bottom line: Economic diversification exhibits a make-or-break point for the economies of Pittsburgh and Detroit, while other factors like the balance between public and private investment, and the cities’ ability to encourage entrepreneurship contribute to their successes in revitalization.