Measuring GDP in a Small Open Economy vs a Large Economy

In a small open economy, measured GDP is often a poor proxy for actual living standards because the metric counts economic activity within national borders, not activity by nationals. Large inflows of foreign capital flows, remittances, and multinational profit-shifting can inflate GDP while wages and employment for locals stagnate. Large, domestically driven economies face the opposite problem: GDP captures most of what matters because most activity is owned and controlled by residents.

Why “Large” and “Small” Matter for GDP Interpretation

GDP is defined as the total gross domestic product of goods and services produced within a nation’s borders in a given period, regardless of who owns the production. A subsidiary of Apple in Ireland makes iPhones; that output is counted as Irish GDP, even though the profits flow to California.

This accounting convention works reasonably well for large, integrated economies like the United States or the European Union. Most output is produced by domestic residents and firms, most capital is owned domestically, and most profits are reinvested or spent domestically. GDP and national welfare track each other fairly closely.

In a small open economy—think Costa Rica, Ireland, Jamaica, or Luxembourg—the situation inverts. Foreign firms dominate major sectors; foreign capital owns the productive assets; and profits leak out as repatriated earnings. Measured GDP can rise sharply while the typical resident’s income and welfare remain flat.

Trade Flows and the Double-Counting Problem

A small open economy relies on trade for survival. If 60% of economic output is exported (compared to ~12% for the United States), the composition of GDP becomes distorted.

Example: Manufacturing in Costa Rica

Intel built semiconductor fabrication plants in Costa Rica in the 1990s, making the country a major chip exporter. The factories employed Costa Ricans and generated billions in measured GDP. However:

• Intel owned the factories and equipment.
• Most technical and management staff were expatriates.
• Profits were repatriated to the United States.
• Costa Ricans earned wages, but did not benefit from capital appreciation or returns on equity.

The GDP number was real—those chips were produced in Costa Rica—but it overstated the welfare gain. A resident’s living standard improved modestly; the nation’s balance sheet barely improved.

Import Intensity

Additionally, small economies often import a large share of inputs. If Jamaica imports fuel and materials worth $2 billion, processes them into goods worth $2.5 billion, and exports them, measured GDP rises by only $0.5 billion. In contrast, the same value-added in the United States might count as $3–4 billion in GDP because fewer imports are required. Small economies thus understate their contribution to global value added.

Remittances: Income Outside Measured GDP

Millions of residents of small economies work abroad and send money home. Remittances often dwarf foreign direct investment (FDI) and official aid.

Example: The Philippines

Remittances to the Philippines total ~$30–$35 billion annually (as of the mid-2020s), roughly 9–10% of measured GDP. Filipino workers in the Middle East, North America, and other countries send home the bulk of their earnings. This income is not counted in Philippine GDP because the production occurred abroad.

However, remittances are the primary income source for tens of millions of Filipinos. They support consumption, education, and small businesses. Ignoring remittances, a resident’s effective income is far lower than GDP per capita suggests.

The situation is even more acute in smaller economies. For Tonga and Samoa, remittances exceed 20% of measured GDP. A researcher looking at national accounting would see modest GDP growth; in reality, household incomes are largely sustained by diaspora workers.

Multinational Profit-Shifting and the Base Erosion Problem

Multinationals structure their operations to concentrate profits in low-tax jurisdictions. A small country with favorable tax treatment becomes a profit-parking lot.

Ireland’s Paradox

Ireland’s GDP per capita is among the world’s highest ($100,000+ in nominal terms as of the mid-2020s), yet median household income is far lower ($50,000–$60,000). The gap exists because multinational tech and pharmaceutical firms book enormous profits in Ireland for tax reasons. Those profits flow through Irish GDP but do not translate into higher wages or consumption for Irish residents.

The OECD developed the concept of GNI (Gross National Income) to address this. GNI counts income earned by nationals, regardless of location. Ireland’s GNI is substantially lower than its GDP, revealing the profit-shifting distortion.

Base Erosion and Profit Shifting (BEPS)

The OECD’s BEPS initiative, launched in 2013, sought to crack down on profit-shifting by setting minimum tax rates and country-by-country reporting rules. However, the distortion remains. Luxembourg, the Netherlands, and other small jurisdictions still host outsized profit concentrations relative to their actual economic activity.

A company may report $5 billion in annual profit in Luxembourg but employ only 500 people. That profit is counted in Luxembourg’s GDP, making the nation appear wealthier than it is, while the capital flows distort the nation’s balance-of-payments accounts.

GNI, Adjusted Income, and Better Metrics

Because of these distortions, economists prefer Gross National Income (GNI) for small open economies. GNI counts the total income earned by a nation’s residents, regardless of location, minus income earned in the country by foreigners.

Formula:

GNI = GDP + (Income earned by residents abroad) − (Income earned by foreigners in the country)

For the United States, GNI and GDP are nearly identical because most production is domestically owned. For Ireland or Luxembourg, GNI is 20–40% lower than GDP.

Another useful adjustment is Adjusted Net National Income (NNI), which deducts depreciation and environmental degradation. A nation may have high GDP but deplete fisheries or forests; NNI would flag the unsustainability.

Why Large Economies Don’t Have This Problem

A large economy like the United States, China, or Germany operates mostly on domestic capital and labor. Foreign ownership of productive assets is a small fraction of the total. Profits earned in the United States by foreign firms are offset by profits earned abroad by U.S. firms.

Additionally, large economies have deep, diversified financial markets. A multinational earns profits in the U.S. but invests them in U.S. government bonds, U.S. real estate, or U.S. corporations, keeping the capital domestic. In a small economy, the same multinational might repatriate profits entirely.

The upshot: for large economies, GDP per capita is a reasonable summary statistic for living standards. For small open economies, it is misleading and should be supplemented with GNI, income distribution data, and remittance flows.

Policy Implications

For Development Aid:

Aid agencies now use GNI per capita (not GDP) to classify countries’ development status. This change reflects the recognition that high GDP-to-GNI gaps indicate dependence on multinational extraction.

For Tax Policy:

Small economies face pressure from international agreements (BEPS, OECD minimum tax rules) to curb profit-shifting. However, many depend on tax-haven revenue for government operations. The trade-off between tax revenue and measured income is politically fraught.

For Employment Policy:

Policymakers in small economies know that attracting multinational factories raises GDP but may not raise wages or employment enough to offset other trade-offs (environmental cost, wage suppression from low-wage foreign workers). This tension explains why some small nations have diversified away from manufacturing toward tourism, agriculture, and services.

See also