Trade Competitiveness and Market Dynamics of U.S. Eggplant Production
DOI:
https://doi.org/10.54536/ajitbae.v1i1.7850Keywords:
Competitiveness, Eggplant, Elasticity, Imports, Trade DependenceAbstract
This study provides a comprehensive economic assessment of supply, demand, and trade competitiveness in the U.S. eggplant (Solanum melongena L.) sector, using annual import and export data from 2000 to 2022. Although eggplant is a regionally important specialty crop in the United States, domestic production remains limited relative to rising consumer demand driven by demographic diversification and shifting dietary preferences. Using descriptive statistics, compound annual growth rates, correlation analysis, log-linear elasticity models, and multiple trade competitiveness indicators, this research examines long-term trends in trade quantity, value, and pricing; evaluates the responsiveness of trade flows to price changes; and analyzes the structural factors underlying persistent import dependence. Results show that both import and export quantities and values have increased steadily, with import volumes averaging nearly four times those of exports. Strong positive correlations among trade variables indicate a high degree of integration with global markets. Elasticity estimates reveal atypical positive price responsiveness in both imports and exports, indicating supply-driven price dynamics, limited substitutability, and quality-differentiated export behavior. Competitiveness indicators, particularly the consistently negative Trade Balance Index, high Import Dependency Ratio, and low Self-Sufficiency Ratio, confirm that the U.S. eggplant market is structurally reliant on foreign supply, despite the premium pricing of U.S. exports. The findings align with comparative advantage theory, market integration frameworks, and product differentiation models, showing that trade patterns are shaped by deep-rooted economic conditions rather than short-term fluctuations. This study highlights the need for strategies to enhance domestic production capacity, improve supply chain resilience, and strengthen competitive positioning in global fresh vegetable markets.
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Adamczewska-Sowińska, K., Krygier, M., & Turczuk, J. (2016). The yield of eggplant depending on climate conditions and mulching. Folia Horticulturae, 28(1), 19–24. https://doi.org/10.1515/fhort-2016-0003
AKPAN, N. M., Ogbonna, P., Onyia, V., Okechukwu, E., Atugwu, A., & Dominic, I. (2016). Studies on the variability and combining ability for improved growth and yield of local eggplant genotypes (Solanum melongena L.). Notulae Scientia Biologicae, 8(2), 226–231. https://doi.org/10.15835/nsb829783
Alam, M. A., Kamarzaman, A. B., Jalloh, M. B., & Lassim, M. bin M. (2021). Evaluation of varietal performance for yield and yield contributing attributes of local brinjal (Solanum melongena L.) germplasm collections. Journal Of Agrobiotechnology, 12(1), 1–9. https://doi.org/10.37231/jab.2021.12.1.226
Armington, P. S. (1969). A Theory of Demand for products distinguished by place of production. Staff Papers-International Monetary Fund, 159–178. https://doi.org/10.2307/3866403
Asche, F., Jaffry, S., & Hartmann, J. (2007). Price transmission and market integration: vertical and horizontal price linkages for salmon. Applied Economics, 39(19), 2535–2545. https://doi.org/10.1080/00036840500486524
Batabyal, K., Mandal, B., Sarkar, D., & Murmu, S. (2017). Assessment of nutrient management technologies for eggplant production under subtropical conditions: a comprehensive approach. Experimental Agriculture, 53(4), 588–608. https://doi.org/10.1017/S0014479716000600
Bonadio, B., Huo, Z., Levchenko, A. A., & Pandalai-Nayar, N. (2021). Global supply chains in the pandemic. Journal of International Economics, 133, 103534. https://doi.org/10.1016/j.jinteco.2021.103534
Cerdeiro, D. A., & Komaromi, A. (2022). Supply spillovers during the pandemic: evidence from high‐frequency shipping data. The World Economy, 45(11), 3451–3474. https://doi.org/10.1111/twec.13290
Chapman, M. A. (2019). Introduction: the importance of eggplant. In The eggplant genome (pp. 1–10). Springer. https://doi.org/10.1007/978-3-319-99208-2
Chen, N. C., & Li, H. M. (1997). Cultivation and seed production of eggplant. Training Workshop on Vegetable Cultivation and Seed Production Technology, AVRDC Staff Publication. https://worldveg.tind.io/record/24369?v=pdf
Concellón, A., Añón, M. C., & Chaves, A. R. (2007). Effect of low temperature storage on physical and physiological characteristics of eggplant fruit (Solanum melongena L.). LWT-Food Science and Technology, 40(3), 389–396. https://doi.org/10.1016/j.lwt.2006.02.004
Costa, E., Durante, L. G. Y., Santos, A. dos, & Ferreira, C. R. (2013). Production of eggplant from seedlings produced in different environments, containers and substrates. Horticultura Brasileira, 31, 139–146. https://doi.org/10.1590/S0102-05362013000100022
Díaz-Pérez, J. C., & Eaton, T. E. (2015). Eggplant (Solanum melongena L.) plant growth and fruit yield as affected by drip irrigation rate. HortScience, 50(11), 1709–1714. https://doi.org/10.21273/HORTSCI.50.11.1709
Escaith, H., & Gonguet, F. (2011). International supply chains as real transmission channels of financial shocks. Capco Institute Journal of Financial Transformation, 31, 83–97. Available at SSRN: https://ssrn.com/abstract=1964360
Faiz, H., Ayyub, C. M., Khan, R. W., & Ahmad, R. (2020). Morphological, physiological and biochemical responses of eggplant (Solanum melongena L.) seedling to heat stress. J. Agric. Sci, 57, 371–380. https://doi.org/10.21162/PAKJAS/20.9433
Food and Agriculture Organization of the United Nations. (2001). Food balance sheets: A handbook. FAO. https://www.fao.org/4/x9892e/X9892E00.htm
FAOSTAT. (2023). FAOSTAT. Retrieved May 11, 2026, from https://www.fao.org/faostat/en/#rankings/countries_by_commodity
Fernando, J. (2026, February 13). Compound annual growth rate (CAGR) formula and calculation. Investopedia. Retrieved May 11, 2026, from https://www.investopedia.com/terms/c/cagr.asp
Ferrier, P. M., & Zhen, C. (2017). The role of income in explaining the shift from preserved to fresh vegetable purchases Journal of Agricultural and Resource Economics, 329–349. https://doi.org/10.22004/AG.ECON.264065
Fisher, B. D. (2015). NAFTA: testing ricardo’s theory of comparative advantage.Chicago-Kent Journal of International and Comparative Law, 15(2), 32. https://doi.org/https://scholarship.kentlaw.iit.edu/ckjicl/vol15/iss2/2
Geroski, P. A., & Hall, S. G. (1995). Price and quantity responses to cost and demand shocks. Oxford Bulletin of Economics and Statistics, 57(2), 185–204. https://doi.org/10.1111/j.1468-0084.1995.mp57002003.x
Gujarati, D. N., & Porter, D. C. (2009). Basic econometrics (5th ed.). McGraw-Hill.
Hallak, J. C. (2010). A product-quality view of the Linder hypothesis. The Review of Economics and Statistics, 92(3), 453–466. https://doi.org/10.1162/REST_a_00001
Hamdy, A., Chouaib, W., & Pacucci, G. (2002). Eggplant production in soilless culture under saline irrigation practices and soil conditioner application. XXVI International Horticultural Congress: Protected Cultivation 2002: In Search of Structures, Systems and Plant Materials for 633, 245–251. https://doi.org/10.17660/ActaHortic.2004.633.29
Harkness, J., & Kyle, J. F. (1975). Factors influencing United States comparative advantage. Journal of International Economics, 5(2), 153–165. https://doi.org/10.1016/0022-1996(75)90002-1
Hayashi, S., Ganno, K., Ishii, Y., & Tanaka, I. (2002). Robotic harvesting system for eggplants. Japan Agricultural Research Quarterly: JARQ, 36(3), 163–168. https://doi.org/10.6090/jarq.36.163
International Monetary Fund. (2009). Export and import price index manual (Chapter 2: Unit value indices). IMF eLibrary. Retrieved May 11, 2026, from https://www.elibrary.imf.org/display/book/9781589067806/ch02.xml
Kirnak, H., Kaya, C., Tas, I., & Higgs, D. (2001). The influence of water deficit on vegetative growth, physiology, fruit yield and quality in eggplants. Bulg. J. Plant Physiol, 27(3–4), 34–46. https://researchprofiles.herts.ac.uk/en/publications/the-influence-of-water-deficit-on-vegetative-growth-physiology-fr/
Knetter, M. M., & Slaughter, M. J. (2001). Measuring product-market integration. In Topics in empirical international economics: A Festschrift in Honor of Robert E. Lipsey (pp. 15–46). University of Chicago Press. http://www.nber.org/chapters/c10577
Lafay, G. (1992). The measurement of revealed comparative advantages. In M. G. Dagenais & P. A. Muet (Eds.), International trade modelling (pp. 209–234). Chapman & Hall.
Lawande, K. E., & Chavan, J. K. (1998). Eggplant (brinjal). In Handbook of vegetable science and technology (pp. 243–262). CRC Press. https://doi.org/10.1201/9781482269871
Leamer, E. E. (1995). The Heckscher-Ohlin model in theory and practice. International Finance Section, Department of Economics, Princeton University. https://ies.princeton.edu/pdf/S77.pdf
Lyu, J., Jin, N., Ma, X., Yin, X., Jin, L., Wang, S., Xiao, X., & Yu, J. (2024). A comprehensive evaluation of nutritional quality and antioxidant capacity of different Chinese eggplant varieties based on multivariate statistical analysis. Antioxidants, 14(1), 10. https://doi.org/10.3390/antiox14010010
Marchand, P., Carr, J. A., Dell’Angelo, J., Fader, M., Gephart, J. A., Kummu, M., Magliocca, N. R., Porkka, M., Puma, M. J., & Ratajczak, Z. (2016). Reserves and trade jointly determine exposure to food supply shocks. Environmental Research Letters, 11(9), 095009. https://doi.org/10.1088/1748-9326/11/9/095009
Martins, D. C., Vilela, F. K. J., Guimarães, R. M., Gomes, L. A. A., & Silva, P. A. da. (2012). Physiological maturity of eggplant seeds. Revista Brasileira de Sementes, 34, 534–540. Https://doi.org/10.1590/S0101-31222012000400002
Mat Sulaiman, N. N., Rafii, M. Y., Duangjit, J., Ramlee, S. I., Phumichai, C., Oladosu, Y., Datta, D. R., & Musa, I. (2020). Genetic variability of eggplant germplasm evaluated under open field and glasshouse cropping conditions. Agronomy, 10(3), 436. https://doi.org/10.3390/agronomy10030436
McPherson, M. A., Redfearn, M. R., & Tieslau, M. A. (2001). International trade and developing countries: an empirical investigation of the Linder hypothesis. Applied Economics, 33(5), 649–657. https://doi.org/10.1080/00036840122575
Murray-Tortarolo, G. N. (2021). Seven decades of climate change across Mexico. Atmósfera, 34(2), 217–226. https://doi.org/10.20937/ATM.52803
Oladosu, Y., Rafii, M. Y., Arolu, F., Chukwu, S. C., Salisu, M. A., Olaniyan, B. A., Fagbohun, I. K., & Muftaudeen, T. K. (2021). Genetic diversity and utilization of cultivated eggplant germplasm in varietal improvement. Plants, 10(8), 1714. https://doi.org/10.3390/plants10081714
Onyeanusi, H. C., Amos, E. I., Olawale, A., Gift, E. C., Emmanuel, U. C., & Okechukwu, A. C. (2025). Field evaluation of eggplant (Solanum gilo) accessions for growth performance, yield, and virus resistance. Asian J. Biol. Sci, 18(2), 452–457. https://doi.org/10.3923/ajbs.2025.452.457
Paterson, J. W. (2019). Eggplants. In Detecting Mineral Nutrient Deficiencies In Tropical And Temperate Crops (pp. 275–282). CRC Press. https://doi.org/10.1201/9780429035258
Rauh, A. (2010). Empirical analysis of the linder hypothesis: the case of Germany’s trade within Europe. The American Economist, 55(2), 136–141. https://doi.org/10.1177/05694345100550021
Savvas, D., Ntatsi, G., & Passam, H. C. (2008). Plant nutrition and physiological disorders in greenhouse grown tomato, pepper and eggplant. Eur. J. Plant Sci. Biotechnol, 2(1), 45–61.
Shin, J., Miller, J. W., & Whipple, J. (2025). The impact of shortages on manufacturers’ new order dynamics. Journal of Business Logistics, 46(3), e70013. https://doi.org/10.1111/jbl.70013
Sutton, J. (1986). Vertical product differentiation: Some basic themes. The American Economic Review, 76(2), 393–398. https://www.jstor.org/stable/1818803
Taher, D., Solberg, S. Ø., Prohens, J., Chou, Y., Rakha, M., & Wu, T. (2017). World vegetable center eggplant collection: origin, composition, seed dissemination and utilization in breeding. Frontiers in Plant Science, 8, 1484. https://doi.org/10.3389/fpls.2017.01484
Thursby, J. G., & Thursby, M. C. (1987). Bilateral trade flows, the Linder hypothesis, and exchange risk. The Review of Economics and Statistics, 488–495. https://www.jstor.org/stable/1925537
United Nations Conference on Trade and Development. (2005). Trade and development report 2005: New features of global interdependence. UNCTAD. https://unctad.org/system/files/official-document/tdr2005_en.pdf
Zahniser, S., Taylor, J. E., Hertz, T., & Charlton, D. (2018). Farm labor markets in the United States and Mexico pose challenges for US agriculture. https://www.ers.usda.gov/publications/pub-details?pubid=90831
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