Oregon’s minimum wage changes have historically been tied to the Consumer Price Index. However, in 2016, the State of Oregon implemented an innovative tiered minimum wage policy that allows the minimum wage to vary by geographic region. Under this policy, the highest minimum wage tier is set for the Portland Metropolitan Area, followed by a lower tier for other urban counties and the lowest for rural counties (Figure 1). The regulatory drive behind this tiered policy was a recognition of the regional economic differences in wages, unemployment, and cost of living within the state. Living in the Portland metro area tends to be more expensive than living in the rest of the state, and it is generally less expensive to live in non-urban counties compared to those near urban centers. The policy was designed to be less burdensome for employers outside the Portland Metro area, as it could be more difficult for them to pass higher wage costs on to consumers in the form of higher prices.
Figure 2 shows the growth of Oregon’s minimum wage for its three tiers before and after the introduction of the tiered minimum wage policy in July 2016. The policy implemented uneven annual wage increases over a six-year period, taking into account the differing living costs across the state, with the goal of reaching the 2022 – 2023 scheduled target (see Table 1 below). Starting in 2023, the minimum wage will be adjusted annually based on inflation, as measured by the State’s Consumer Price Index for All Urban Consumers (CPI-U), while keeping the tiered wage system in place. Under this system, rural employers will pay $1 less than urban employers, and those in the Portland metro area will pay $1.25 more than other urban employers. As a result, the minimum wage in the Portland metro area will be $2.25 higher than in the state’s rural counties with the lowest population densities.
Establishments, particularly small businesses, may struggle to absorb wage increases depending on their location and industry. For example, certain industries, such as food services, retail, hospitality, and agriculture, traditionally operate with thin profit margins and are heavily reliant on low-wage labor. For these businesses, a significant portion of their expenses is tied to wages, and any increase in labor costs over time can erode their profitability quickly. Businesses in these industries may find it more challenging to absorb minimum wage increases compared to industries with higher profit margins or those that rely less on low-wage workers. As a result, the chances of businesses to continue operation while enduring the pressures from rising minimum wages, can vary depending on how labor is used intensively in the industry.
In recent research, we explore the impact of the three-tier minimum wage policy on restaurant survival in Oregon. We do this by comparing restaurant survival in Oregon to that of similar restaurants in Idaho, where the minimum wage has remained fairly constant over time. Idaho’s adherence to the federal minimum wage (see Figure 1), which has remained constant at $7.25 per hour since 2009, contrasts with Oregon’s dynamic and tiered approach. Since it’s not possible to conduct a real-world experiment with minimum wage policies, we use Idaho as a proxy to estimate how restaurant survival rates in Oregon might have evolved if the tiered minimum wage policy had not been implemented. Our analysis focuses exclusively on urban and rural counties, intentionally excluding the Portland Metro area as there are no cities as large as Portland in Idaho.
Drawing on data from the National Establishments Time Series (NETS) Database, the analysis focuses specifically on establishments that were operational in 2011 and track their survival through 2021. We analyze the survival of 1,803 restaurants located in urban areas of Oregon, comparing them to an equal number of similar restaurants in urban Idaho. Similarly, we assess the survival of 1,224 restaurants in rural Oregon and compare them to an equivalent number of similar establishments in rural Idaho. Figure 3 shows the survival of these restaurants in both urban and rural areas of Oregon and Idaho. In the left panel, we compare the survival of urban restaurants in Oregon to those of similar establishments in urban Idaho. The right panel offers a parallel comparison for rural areas, examining the survival of rural Oregon restaurants against their counterparts in rural Idaho.
The survival of restaurants in urban Idaho shows a steady decline over time, starting at around 1.0 (full survival) in 2011 and gradually decreasing until 2021, when the survival rate dropped to around 0.65. Prior to 2016, the survival rate in urban Oregon followed a downward trend similar to that of urban Idaho. However, it appears to have declined faster than urban Idaho after 2016 (indicated by the dashed line). By 2021, urban Oregon has a marginally lower survival rate than urban Idaho. The survival rate of rural Idaho restaurants declines similarly to urban Idaho, with a slow but steady decrease from 2011 through 2019, reaching approximately 0.63 by the end of the period. The observed trend suggests that establishments in urban Oregon faced more significant challenges in absorbing the effects of wage increases than their Idaho counterparts. These urban businesses, which already tend to have higher operating costs (such as rent and utilities), were more susceptible to the pressures of rising wages.
In our research paper, which uses a statistical model to estimate the impacts of Oregon’s minimum wage policy, we estimate that the implementation of the tiered minimum wage policy has led to an average decline of about 3.3% in the cumulative likelihood of survival among urban restaurants. In contrast, the policy showed no significant impact on the survival rates of rural establishments. Furthermore, our analysis shows no statistically significant effect on urban chain restaurants. However, we find a much stronger and statistically significant impact—around 3%—on non-chain restaurants. This suggests that fast-food chains, which typically operate with more excess labor, can downsize while maintaining operations, or perhaps they have the financial flexibility to invest in labor-saving technologies, making them more resilient to wage increases.
While tiered minimum wage policies are intended to reduce regional disparities and promote economic equity, it is essential for policymakers to carefully consider the associated trade-offs. These policies can inadvertently create significant challenges for businesses, impacting their ability to sustain operations. The notable decline in restaurant survival rates in urban Oregon illustrates the unintended consequences that can emerge when wage increases are implemented without supportive measures for affected establishments. This scenario highlights the need for Oregon policymakers to balance the objective of raising workers’ wages with the imperative of ensuring business viability in both urban and rural areas. To address these challenges, Oregon policymakers should contemplate accompanying wage increases with targeted support programs for businesses. Such measures could include tax incentives, grants, or access to low-interest financing specifically designed to alleviate liquidity constraints faced by establishments adjusting to higher payroll expenses. By providing this support, businesses can better manage the financial impact of increased wages, reducing the risk of closures and job losses.