The monograph addresses issues of practical and scientific significance, focusing on international commercial practices, particularly intra-industry trade. Its analysis is relevant not just theoretically but also for comparative studies of economic and industrial relationships. The research holds particular importance for Poland, where participation in the Single European Market has enhanced trade opportunities with EU partners. The modernization of the processing industry has positioned the Polish economy favorably for increased intra-industry exchange. The findings regarding the connection between intra-industry trade intensity and international competitiveness, especially among the new EU Member States (EU-10) compared to the older EU economies (EU-15), are rarely explored. This topic is crucial for both practical and scientific discussions. The author offers fresh insights and valuable contributions to the understanding of competitiveness measurement and the adaptation of economies amid the liberalization process within the Single European Market. The work is recognized for its importance in advancing the dialogue on these critical economic dynamics.
