International Business Review 24 (2015) 772–780 Contents lists available at ScienceDirect International Business Review journal homepage: www.elsevier.com/locate/ibusrev Effect of export experience and market scope strategy on export performance: Evidence from Poland Jerzy Cieślik a,*, Eugene Kaciak a,b,1, Narongsak (Tek) Thongpapanl b,c,2 a Center for Entrepreneurship, Kozminski University, Jagiellonska 59, Warsaw, Poland Goodman School of Business, Brock University, St. Catharines, ON, Canada L2S 3A1 c Chiang Mai University, Chiang Mai 50200, Thailand b A R T I C L E I N F O A B S T R A C T Article history: Received 10 April 2014 Received in revised form 5 February 2015 Accepted 13 February 2015 Available online 29 March 2015 This study examines the impact of internationalization experience and market scope strategy on the export performance of firms operating in Poland. This study uses data from 2003 to 2010, an eight-year period that includes the country’s accession into the European Union in 2004. Several important findings are revealed by the research. First, a firm’s export experience and performance have an inverted Sshaped relationship, i.e., performance is increasing at low and high levels but decreasing at moderate levels of experience. Second, the relationship between the growth of the number of export countries and export performance is initially positive, but becomes negative over time. Third, over time the growth of a firm’s share of the main export market is found to be negatively related to export performance. Revealing the dynamism of these relationships through a longitudinal approach is of theoretical and practical importance to scholars, practitioners and governments of other emerging economies that are considering joining similar trade organizations/agreements. ß 2015 Elsevier Ltd. All rights reserved. Keywords: Emerging economy Export experience Export marketing strategy Export performance Inverted S-shaped relationship 1. Introduction As international competition increases, it is important for firms to develop and implement successful strategies in order to ensure satisfactory export performance outcomes (Casey & Hamilton, 2014; Laufs & Schwens, 2014). How and why some firms succeed in certain foreign markets, while others fail, is one of the critical issues in international strategic management (Beleska-Spasova, Glaister, & Stride, 2012). Certainly degree, scope and speed, the three most important strategic dimensions of international entrepreneurship as defined by Zahra and George (2002), play a role in the success or failure of a firm (Khavul, Pérez-Nordtvedt, & Wood, 2010). In this study, we argue that a firm’s success in a foreign market depends not only on its given portfolio of resources and capabilities, as per the resource-based view (RBV), but also on its capacity and ability to constantly change and adjust to international uncertainties. Therefore, we complement RBV with the dynamic capability view (DCV) (Kogut & Singh, 1988; Villar, * Corresponding author: Tel.: +48 502 030 030. E-mail addresses: cieslik@kozminski.edu.pl (J. Cieślik), ekaciak@brocku.ca (E. Kaciak), TEK@brocku.ca (N.(. Thongpapanl). 1 Tel.: +1 905 688 5550x3902. 2 Tel.: +1 905 688 5550x5195. http://dx.doi.org/10.1016/j.ibusrev.2015.02.003 0969-5931/ß 2015 Elsevier Ltd. All rights reserved. Alegre, & Pla-Barber, 2014). This approach offers a suitable theoretical foundation for our research as it assumes that it is possible for a firm to not merely respond to external challenges but also to learn, integrate, build and actively reconfigure its internal and external competencies (Prange & Verdier, 2011). Not only does this approach take into consideration the relationships between the external environment and the firm, but other factors that may also have an impact on a firm’s strategy formulation and performance in a global setting, such as an entrepreneurial vision, managers’ international experience and alertness to opportunities, can also be considered (Crick, 2009). We use export experience and market scope strategies to measure a firm’s engagement with the internationalization process and propose that export experience and performance have an inverted S-shaped relationship. Using Poland as an example, we also seek to describe the internationalization process of firms operating in an emerging economy. What makes this study distinct from similar studies of firms operating in emerging economies is that it takes into account the context of the sudden, albeit anticipated, opportunities that were made available to Polish firms through easier access to the vast European Union (EU) market. Our study also offers important insights into the role of internationalization expansions during transition periods. We examine data from 2003 to 2010, covering the year leading up to and the six-year period following Poland’s 2004 accession to the EU. We assume that Polish firms had already taken the scheduled 2004 accession J. Cieślik et al. / International Business Review 24 (2015) 772–780 into account in their strategic orientations in 2003 (or even earlier) and that their behavior during the year 2003 is very similar to the subsequent years. The now available EU funds created a favorable environment for the general economic development of Polish firms and, thanks to the unrestricted access to the EU countries, for the improvement of export conditions. Consequently, the export diversification opportunities for Polish firms increased dramatically during this timeframe. No doubt, most of these firms were exporters before the EU accession; however, without the benefits of the EU membership, their export activities during the years 2003 to 2010 would most likely have followed the pathways proposed by the traditional theory of internationalization and have continued to develop rather slowly and gradually (Johanson & Vahlne, 1977). Although time is an important dimension of the entrepreneurship process, the extant international business research is characterized by static, cross-sectional studies (Coviello & Jones, 2004). The snapshot nature of cross-sectional studies limits their ability to examine how internationalization processes unfold (De Clercq, Sapienza, Yavuz, & Zhou, 2012). Kuivalainen, Saarenketo, and Puumalainen (2012) pointed to a need for longitudinal studies with large samples to further examine the pattern and speed of internationalization. Similar calls have come from other scholars with the objective of resolving the contradictory results found by various researchers in the field over the past several decades (Casillas, Moreno, & Acedo, 2012). Observing a firm before and after its first international sale may help explain the nature of the changes that a firm faces during the internationalization process and the performance consequences of these changes (Kuivalainen et al., 2012). In this study, we adopt a dynamic and time-related approach and base our analysis, which is grounded in the dynamic capability-based view, on longitudinal data. To examine the impact of internationalization experience and market scope strategy on a Polish firm’s export performance, we have organized the study as follows. First, we present a literature review on the relationships between export performance, experience and market scope strategies, which results in a set of research hypotheses. A methodology section describes the data collection process, the measures utilized and the longitudinal analysis used on the 2003–2010 data. Then, we present and discuss the results in reference to the country’s 2004 accession to the EU. Finally, we draw conclusions, discuss the limitations of the study and reveal the theoretical and practical importance of our findings to scholars, practitioners and governments of other emerging economies that are considering joining similar trade organizations/agreements. 2. Theoretical framework and hypotheses There is a considerable amount of empirical evidence available on the impact of alternative market scope strategies on the export performance of a firm. However, the results are either contradictory or inconclusive (Beleska-Spasova et al., 2012; Ruzo, Losada, Navarro, & Diez, 2011). For example, a fundamental postulation that describes the traditional pattern of a firm’s internationalization, known as the Uppsala model, is that internationalization is a process in which a firm gradually increases the number and diversity of the markets it serves (Kuivalainen et al., 2012). Thus, the theory postulates that a firm following the traditional internationalization pattern should have a narrow market scope at the beginning of its international operations and, therefore, the market concentration strategy should be the preferred option. However, research has shown that some firms undertake a contradictory approach to internationalization. In contrast to the pattern of the Uppsala model, born global (BG) companies begin to operate in multiple countries almost from inception (e.g., Loane, Bell, & Cunningham, 2014; Oviatt & McDougall, 1994), and their 773 favorable export strategy should be market spreading. It is also important to note that most studies that have examined the relationships between export performance and export experience and/or market scope strategies were primarily conducted in the context of developed economies (Chao & Kumar, 2010; Chen & Hsu, 2010; Contractor, Kundu, & Hsu, 2003; Lee, 2010; Li, Qian, & Qian, 2012; Lin, Liu, & Cheng, 2011; Lisboa, Skarmeas, & Lages, 2013; Mas, Nicolau, & Ruiz, 2006). In contrast, studies on emerging market firms have been rarely undertaken (Contractor, Kumar, & Kundu, 2007; Sahaym & Nam, 2013; Xiao, Jeong, Moon, Chung, & Chung, 2013). Internationalization scholars (Katsikeas and Leonidu, 1996; Lee & Yang, 1990) highlight that exporting firms have the tendency to either concentrate their export scopes to a smaller number of foreign markets located closer to their home markets, to spread their export landscapes to include a large numbers of markets, or to do both concurrently. Morgan-Thomas and Jones (2009) find that many firms opt to go with the concurrent entry into a larger number of export markets at the very outset of their expansion. This extensive international expansion is chosen, as Rialp, Rialp, & Knight (2004) argue, not only because firms are driven to maximize sales and market shares, but because they are also trying to safeguard themselves against competition and optimize their resource utilization. Datta, Rajagopalan, & Rasheed (1991), however, assert that having a presence and operating in multiple countries with varying cultural contexts may also burden firms with a significant increase in transaction and operating costs, which could potentially not be offset by the benefits of international expansion. The prevailing view in the literature suggests that increasing the market scope should, at least initially, enhance a firm’s export performance since it enables the optimization of the cost/benefit ratio of internationalization (Chao & Kumar, 2010; Lee, 2010; Li et al., 2012). When geographic spread is moderate, RBV indicates that such moderate sharing of assets leads to economies of scale (Li et al., 2012). Furthermore, firms operating in multiple countries may be less vulnerable to individual fluctuations in market demand and therefore may be better able to survive any market shocks. Firms with more international experience are also likely to have better knowledge of foreign conditions than firms with less international experience and, as a result, are much better at positioning their firms strategically in response to the various international conditions and in preparation for further international expansion opportunities (Barkema & Shvyrkov, 2007). When Poland joined the EU, the first phase in the rapid and frequently chaotic increase of the Polish firms’ export potential was similarly characterized by a market spreading approach. Thanks to the newly accessible export markets, the firms began to enjoy higher export sales due to the sheer volume of transactions scattered throughout multiple countries. This stage is equivalent to Stage 2, the ‘‘mid-stage internationalizers,’’ in the three-stage S-shaped model of international expansion proposed by Contractor et al. (2003). Polish companies did not have to go through Stage 1 of the aforementioned model, the stage associated with ‘‘early internationalizers.’’ As a member of the EU, they also did not face the liability of foreignness, as early internationalizers would normally face, and did not have to endure the additional burden or costs associated with this liability. Given that Polish firms have already been engaging in export activities prior to joining the EU, it is reasonable to assume that they have, to some extent, already acquired the needed export resources and capabilities. Nonetheless, these resources and capabilities may have been underutilized due to the limited opportunities for internationalization available to Polish firms. In this early, post-EU entry phase, Polish firms were likely to realize their market spreading strategy through familiar and neighboring markets, as the firms used and stretched their 774 J. Cieślik et al. / International Business Review 24 (2015) 772–780 resources and capabilities to take advantage of the easily accessible opportunities for growth (Chao & Kumar, 2010; McDougall, Shane, & Oviatt, 1994). However, a firm’s rapid increase of export potential might result in a shallow penetration into each market and the possibility of a subsequent decline in export performance since their limited marketing budget would have to serve a larger number of markets (Ruzo et al., 2011). When firms use up their slack resources and exhaust their capabilities during this post-entry phase, they cannot continue on their positive international growth and expansion paths until they replenish these resources and renew these capabilities. This stage matches Stage 3 in Contractor’s et al. (2003) model that depicts ‘‘highly internationalized firms.’’ This initial growth followed by a subsequent decline is also conceptually similar to the exploitative process of internationalization, which, based on the application of existing knowledge by a firm, closely follows the traditional incremental approach to internationalization (Kahiya & Dean, 2014; Lisboa et al., 2013; March, 1991; Prange & Verdier, 2011; Villar et al., 2014). When the exploitative internationalizing firm develops its knowledge based on past experiences rather than on new capabilities, it unwittingly restricts its ability to explore new feasible paths for export growth. Following the volatile phase of temporary growth and the subsequent decline of export performance, surviving firms will use their newly acquired experience to start moving to the next phase of market expansion. During this later post-entry phase, firms recognize the limit of their home-country-derived capabilities as they explore and develop host-country specific knowledge (March, 1991). As a result, firms enter a period where they accumulate new resources, acquire fresh knowledge, learn different routines and business practices, as well as build and annex different capabilities, in order to get back on the path of positive growth and expansion after the period of contraction. This is analogous to the explorative phase of internationalization (Kahiya & Dean, 2014; Lisboa et al., 2013; March, 1991; Prange & Verdier, 2011; Villar et al., 2014), when a firm is able to expand thanks to the new resources and capabilities that are strategically acquired for their chosen export market opportunities. During this market exploration stage, the firm’s export performance will stop deteriorating and may slowly start improving again. Thus, the internationalization process of firms exporting from Poland encompasses three phases: (1) a phase of a rapid, frequently chaotic and euphoric increase in exporting activities in many countries; (2) a phase of a subsequent decline in export performance; and (3) a phase of a gradual optimization of market spreading efforts by new learning and experience, thus leading to an improved and more stable market performance. These three phases of internationalization can also be found in Lee (2010), although in that study the phases are found within the framework of the relationship between firm performance and the degree of internationalization (foreign sales to total sales ratio; FSTS), rather than export experience or market spreading strategy. Lee (2010) shows that the performance of internationalized new ventures will first be higher, when the level of their internationalization starts increasing (Phase 1), and then lower, when the firm starts experiencing increased transaction costs (Phase 2). In Phase 3, the firm will start accumulating business experience in its expanded foreign markets and will again start improving its performance. Additionally, Lee (2010) showed the existence of a fourth phase, in which the increased costs from the liability of foreignness outweigh the additional benefits from further international expansion. In essence, Lee’s (2010) model of the relationship between internationalization and performance is an M-shaped curve. Our proposed three-phase model corresponds to the first three sections of the M-shaped curve and therefore our model forms an inverted S-shape. The inverted S-shaped relationship between firm performance and the degree of internationalization was also found (albeit only for capitalintensive sectors) by Contractor et al. (2003). Chao and Kumar (2010) as well as Li et al. (2012) performed similar tests for the existence of the inverted S-shaped curve; however, they were unable to obtain a significant cubic term of the geographic spread variable. The S-shaped (not inverted) relationship between a firm’s internationalization and its performance was confirmed by Contractor et al. (2003) for knowledge-based sectors, by Lu and Beamish (2004) and Xiao et al. (2013). The S-shaped relationship has also been tested by Chen and Hsu (2010) and Lin et al. (2011), both of whom found insignificant results. In fact, Chen and Hsu (2010) obtained an unexpected opposite result, the inverted Ushape, which they suggested could represent the second and third stages of Contractor’s et al. (2003) model. However, we also note that the inverted U-shape encompasses the first two sub-stages of the inverted S-shape, which supports the three-stage model hypothesized in this paper. An inverted U-shaped relationship between internationalization and performance was also confirmed by Hitt, Hoskisson, and Kim (1997), Chao and Kumar (2010), Li et al. (2012), and Chen, Jiang, Wang, and Hsu (2014). Table 1 presents a summary of studies that have considered the relationships between export performance, export experience and/or market scope strategies. In accordance with these arguments, we propose that: H1. Export experience and performance have an inverted Sshaped relationship: performance is increasing at both low and high levels of experience but it decreases at moderate levels of experience. H2. The growth of the number of export countries and export performance have an inverted S-shaped relationship: performance is increasing at both low and high levels of market spreading but it decreases at moderate levels of market spreading. Results reported in the literature on market concentration activities are at best inconclusive or insignificant in this regard (Mas et al., 2006). While there is ample research investigating which of the two strategies, market spreading or market concentration, actually leads to better export performance, the results are mixed. Certainly superiority of the market spreading strategy over the market concentration strategy has been found in many studies (Beleska-Spasova et al., 2012; Casey & Hamilton, 2014; Cieślik, Kaciak, & Welsh, 2012; Kahiya & Dean, 2014; Khavul et al., 2010). However, there is also a substantial body of research which claims that it is unclear which of the two strategies leads to the best results (Mas et al., 2006; Ruzo et al., 2011). In view of this lack of evidence regarding the possible increased performance benefits from the market concentration approach, we propose that: H3. No relation exists between the growth of the share of the main export market and export performance during any phase of the firm’s internationalization process. 3. Methods 3.1. Sample Our research was based on panel data (2003–2010) that can be found in the database of Polish commodity exporters maintained by the Analytical Centre of Customs Administration (CAAC), a Polish Government Institution. The dataset used in the analyses described henceforth is the result of the compilation of the J. Cieślik et al. / International Business Review 24 (2015) 772–780 775 Table 1 Relationships between export performance, experience and/or market scope strategies. Study Empirical setting Export performance (dependent variable) Export experience and/or market scope strategies (independent variables) Shape of the relationship This current study 321 Polish firms; longitudinal study (2003–2010) Export sales growth Time after internationalization (tai); the number of export markets growth; the major exporter’s share growth Chao and Kumar (2010) Fortune Magazine Global 500 firms; cross-sectional study (2004) 224 Taiwanese firms; longitudinal study (2000–2005) 685 Chinese firms; longitudinal study (2008–2011) 103 world’s largest service firms Return on assets (ROA) A composite index based on the number of foreign subsidiaries and the number of countries in which they operate The total number of foreign countries in which the firm had subsidiaries in a given year The foreign sales to total sales ratio (FSTS) The inverted S-shape (for tai) The inverted U-shape (for the number of export markets growth; the inverted Sshape hypothesized as well but not confirmed) No relationship for the major exporter’s share growth The inverted U-shape (the inverted Sshape hypothesized as well but not confirmed) Chen and Hsu (2010) Chen et al. (2014) Contractor et al. (2003) Hitt et al. (1997) Lee (2010) Li et al. (2012) 295 US firms crosssectional study (1989) 2236 Korean firms cross-sectional study (2002) 278 US firms; longitudinal study (2003–2009) Earnings before interest and taxes (EBIT) ROA Return on sales (ROS); ROA ROA Return on equity (ROE); ROA ROA; ROS Lin et al. (2011) 179 Taiwanese firms; longitudinal study (2000–2005) ROA Lu and Beamish (2004) 1489 Japanese firms; longitudinal study (1986–1997) Xiao et al. (2013) 114,398 Chinese firms; longitudinal study (2001–2007) ROA; the market value of assets divided by the replacement value of assets (Tobin’s Q) ROA; ROS customs data on commodity exports (provided by the Customs Office) with economic and financial data (filed in the National Corporate Registry). Unfortunately, Polish companies sometimes delay their financial submissions, and, therefore, only a limited number of more recent financial statements were available. The last year with complete coverage was 2010. The 321 companies identified and selected for this study’s research purposes were domestic firms based in the centrally located Mazovia region that engaged in export sales every year during the 2003–2010 period and had manufacturing as their core activity (NACE 2 10–33). It is worth noting that the Eurostat data on GDP in European regions shows that in 2009 Mazovia reached a GDP level of EUR 22,800. This GDP level was 91% of the EU average and a level 15 percentage points higher than the region’s pre-2004 GDP. We followed a recommendation from Freixanet (2012) and confined our analysis to a single region, rather than to the entire country, because of possible variations in the internationalization processes that may be present among the other, less advanced, regions of Poland. A similar approach was taken by Xiao et al. (2013) when they neutralized the location effect on international strategy and firm performance by limiting their sample to one of the most rapidly developing areas in China: the Yangtze River Delta A composite index based on the FSTS, the foreign employees to total employees ratio, and the number of foreign offices to the number of total offices ratio A composite index based on the foreign sales attributed to the market and the weight given to each market FSTS The number of foreign markets served by the firm; A composite index based on the foreign sales attributed to the market and the weight given to each market A composite index based on the FSTS, the foreign assets to total assets ratio, and the number of countries in which the firm has subsidiaries The number of the firm’s foreign subsidiaries in each year; the number of countries in which the firm had foreign subsidiaries in a given year The export sales to total sales ratio (ESTS) The inverted U-shape (the S-shape hypothesized as well but not confirmed) The inverted U-shape The inverted S-shape (for capitalintensive sectors) The S-shape (for knowledge-based sectors) The inverted U-shape (for moderate diversifiers) The M-shape The inverted U-shape (the inverted Sshape hypothesized as well but not confirmed) The S-shape and U-shape tested but not confirmed The S-shape The S-shape region. We included only the firms that have export sales every year during the 2003–2010 period to ensure that these firms were committed to expanding their international operations and that internationalization was not meant to be sporadic (Kuivalainen et al., 2012). We excluded foreign subsidiaries from our study as they are part of a bigger network and are likely to have or could access considerable critical resources (e.g., foreign market knowledge, financing) that would typically be unavailable to and potentially irrelevant (e.g., global production rationalization) for local Polish firms. Of the 4850 companies in Mazovia contained in the database of Polish commodity exporters maintained by the CAAC, only 321 companies (or approximately 6.6%) met the above criteria and have all the economic and financial data needed for the purposes of our study. The CAAC database contains only information about exports and imports, which we matched with other sources such as the official company register (REGON) and economic and financial data provided by professional suppliers. We also attempted to obtain data on turnover, employment and assets. It was possible to obtain the data for only 298 exporting firms and only for the period of 2007–2010. We supplemented the base dataset of regular exporters in 2003–2010 with this additional data. 776 J. Cieślik et al. / International Business Review 24 (2015) 772–780 3.2. Variable definition 3.2.1. Dependent variable In line with the objectives of the study, our dependent variable is export performance, namely export sales growth (expgr), calculated as relative ratios (in terms of percentages) of export sales (exp) in two consecutive years, i.e., [exp(t) exp(t 1)]/ exp(t 1). Export sales growth has also been used in a number of other studies (Cieślik, Kaciak, & Welsh, 2010; De Jong & van Houten, 2014; Ruzo et al., 2011; Sleuwaegen & Onkelinx, 2014). Due to its skewed distribution, we transformed that variable by using its logarithm (log_expgr). 3.2.2. Independent variables We operationalized the market spreading activities by basing it on the number of countries to which a firm was exporting its product(s) in a given year (country). We calculated the relative ratios (countrygr; in terms of percentages) of country in two consecutive years, i.e., [country(t) country(t 1)]/country(t 1). Due to its skewed distribution, we transformed that variable by using its logarithm (log_countrygr). The number of export countries is a very popular indicator of the market spreading activities and strategy (Gallego & Casillas, 2014; Hilmersson, 2014; Kuivalainen et al., 2012; Mas et al., 2006). We defined the market concentration activities in a similar way. Each firm’s export sales as channeled to its largest export market were provided in the original CAAC dataset as a percentage of the firm’s total export sales in a given year (prcmjrexp). We calculated relative ratios (prcmjrexpgr) in terms of percentages of prcmjrexp in two consecutive years, i.e., [prcmjrexp(t) prcmjrexp(t 1)]/ prcmjrexp(t 1). Due to its skewed distribution, we transformed that variable by using its logarithm (log_prcmjrexpgr). The share of the key export market to total export sales is a frequently used measure of market concentration activities and strategy (MorganThomas & Jones, 2009). As we have already emphasized, the time after internationalization (tai) is an important component in international entrepreneurship/business research because it determines, among other things, a firm’s export experience (Mas et al., 2006; Wu & Chen, 2014). We operationalized this variable as the difference between the firm’s age and the time it took to embark on internationalization (tti), which is a well-established variable in internationalization research. 3.2.3. Control variables We controlled for firm size (operationalized as the logarithm of employment; De Jong & van Houten, 2014; log_empl), time to internationalization (Gallego & Casillas, 2014; Suh & Kim, 2014; log_tti), as well as for manufacturing industry technology levels (Casey & Hamilton, 2014; OECD, 2005). We combined high and medium-high technology levels into one category as we had identified a rather small number of firms in each of these two categories (mfct_ht_mht) followed by medium-low (mfct_mlt) and low-technology dummies (mfct_lt; the reference category). 3.3. Model selection To find empirical support for our hypotheses, we tested the relationships between export performance, export experience and the market scope strategies. We used the panel data technique because the data-set in this study has both a time series and a cross-sectional dimension. As a firm’s behavior may have dynamic characteristics which cannot be explained by static panel models, we used dynamic models in which lagged dependent and independent variables are used as explanatory variables (Franco, 2013; Li et al., 2012). First, we determined the order of lags for the dependent variable. Specifically, we compared the mean square error of the model with the first-order lagged dependent variable with that of the second- and third-order lagged models. The results indicated that there was no difference between them. Thus, we assumed that the use of only the first-order lagged dependent variable is appropriate as its coefficient fully reflects all past information synthetically (Qian, Li, Li, & Qian, 2008). Second, to account for a possible relationship between the strategy chosen and future export performance, we lagged the market strategy variables by four years. Finally, as the reverse relationship that runs from exports to the market scope strategy-related variables may still exist despite the use of a lag structure in these variables, we dealt with this endogeneity by using the generalized method of moments (GMM). The GMM estimator takes into account problems that arise when estimating the model with endogenous variables (Yi, Wang, & Kafouros, 2013). Thus, the following model was applied for estimation: log expgr it ¼ a þ b1 log expgr i;t1 þ b2 log em plit þ b3 log ttiit þ b4 tlt þ b5 taiit þ b6 tai2it þ b7 tai3it þ b8 log prcm jrexpgr i;t p þ b9 log countrygr i;t p þ hi þ eit ; p ¼ 0; 1; 2; 3; 4 where expgrit represents export performance for firm i (i = 1, 2,. . .,321) at time t (t = 1, 2,. . .,8); the next three variables control for firm size (emplit), time to internationalization (ttiit), and technology level (dummies tlt); taiit represents time after internationalization; prcmjrexpgri,t-p captures a relative increase from year (t 1) to year (t) in the percentage of the ith firm export sales channeled to its largest export market in a given year, lagged p years; similarly, countrygri,t-p depicts a relative increase from year (t 1) to year (t) in the number of countries to which a firm i was exporting its product(s) in a given year, lagged p years; hi are the panel-level effects (which may be correlated with the covariates) and eit are the unobserved error terms of the ith cross-sectional unit. Since there were no significant events in Poland during the period of study beyond joining the EU, we did not include any year dummies in our model. The endogeneity caused by the lagged market strategy variables and the lagged export performance is addressed using system GMM (sys-GMM). Arellano and Bond (1991) and Blundell and Bond (1998) have suggested that an application of the sys-GMM estimators is a more appropriate and efficient approach to dealing with dynamic panel data than using the diff-GMM estimators. Furthermore, the sys-GMM is designed for datasets with many panels and few periods, as in our case. We found robust standard errors to correct for possible heteroscedasticity. 4. Results Table 2 presents descriptive statistics for, and very low pairwise correlations among, the variables used in this study. An additional regression diagnosis conducted using the varianceinflating factor (VIF) to determine the existence of multicollinearity among the variables further confirmed that multicollinearity is not a major concern in this study: all VIFs were below 1.5 (Cenfetelli & Bassellier, 2009). The sys-GMM estimation results are reported in Table 3. We tested our hypotheses using four regression models. Model 1 is the base model that includes the effects of all of the control variables on export performance. Models 2–4 test the hypothesized inverted J. Cieślik et al. / International Business Review 24 (2015) 772–780 777 Table 2 Descriptive statistics and correlationsa for the variables. Variables N Mean S.D. Min. Max 1 2 3 4 5 1. 2. 3. 4. 5. 6. 2247 881 1848 2247 2247 2568 0.0253 4.7445 0.8545 0.0118 0.0142 9.8146 0.5805 1.2210 0.8607 0.3018 0.4423 3.8339 5.7267 0.6934 0 1.4271 3.0445 0 3.9354 9.1901 2.9957 2.0176 1.7918 17 0.1265b 0.0075 0.1359b 0.3964b 0.1083b 0.0531 0.0603 0.0766b 0.1167b 0.0199 0.0131 0.0948b 0.3514b 0.0404 0.0758b log_expgr log_empl log_tti log_prcmjrexpgr log_countrygr tai Where: expgr (export sales growth, i.e., export performance) = [exp(t) exp(t 1)]/exp(t 1), empl (employment, i.e., firm size), tti (time to internationalization), prcmjrexpgr (major exporter’s share growth) = [prcmjrexp(t) prcmjrexp(t 1)]/prcmjrexp(t 1), countrygr (number of export markets growth) = [country(t) country(t 1)]/ country(t 1), tai (time after internationalization, i.e., export experience) = firm’s age tti. a For metric variables only. b Indicates significance at 5% level. S-shape relationship between export experience (tai) and export performance (H1). Additionally, Model 3 complements this connection with the market spreading activities, represented in this study by the growth of the number of export countries (H2) while Model 4 does so with the market concentration activities, represented by the growth of the share of main export market (H3). The GMM estimator uses instrumental variables to estimate parameters, which had to be tested for validity. As shown in Table 3, the p-values of the Sargan test of over-identifying restrictions for Models 3 and 4 are larger than the 0.05 level, which suggests that the null hypothesis cannot be rejected and that the instrumental variables chosen in the models are valid (Li et al., 2012). The p-values of the first or second-order serial correlation test for the four models are also larger than the 0.05 level, thus indicating that the error term is not first or secondorder serially correlated. Wald Chi-square p-values are below 0.05 (and below 0.10 for Model 2), which indicates that these models are statistically significant. The results from Model 1 show that none of the control variables have a significant regression coefficient, and thus they exert minimal influence. Our first hypothesis (H1) proposes that export experience and export performance have an inverted S-shaped relationship, with performance increasing at low and high levels of experience but decreasing at moderate levels of experience. We test this in Models 2, 3 and 4, where time after internationalization (tai) is introduced in its linear, quadratic and cubed forms. The final results suggest that H1 is supported as the three regression coefficients are significant and they have appropriate signs for an inverted S-shape – a positive for the linear term, a negative for the squared term and a positive for the cubed term. To further examine how export experience influences export performance, we left the effects of the other independent variables unchanged and took a partial derivative of the dependent variable based on the coefficients obtained using Model 4 in Table 3. This Table 3 Regression of export performance on the individual variables of market scope strategy and international experience. Independent variables Model 1 Model 2 Model 3 Model 4 Constant Export performance (t 1) Firm size (log_empl) Time to internationalization (log_tti) Technological intensity dummies Export experience (time after internationalization; tai) tai squared tai cubed No. of export markets growth (log_countrygr) – (t) L1 (t 1) L2 (t 2) L3 (t 3) L4 (t 4) Major exporter’s share growth (log_prcmjrexpgr) – (t) L1 (t 1) L2 (t 2) L3 (t 3) L4 (t 4) Wald Chi-square p-value Sargan test of over-identifying restrictions Chi-square p-value Arellano-Bond test for zero autocorrelation in first-differenced errors (p-values) Order 1 Order 2 No. of instruments No. of groups No. of observations 2.2512 (2.8347) 0.1792*** (0.0680) 0.2258 (0.4162) 0.9331 (1.0067) Yes 0.2660 (3.5137) 0.1933*** (0.0708) 0.2875 (0.4891) 0.8007 (1.1668) Yes 0.6795* (0.3788) 0.0609* (0.0348) 0.0016* (0.0009) 7.8066* (4.1246) 0.2397 (0.1595) 0.1330 (0.1986) 0.4872 (0.5277) Yes 2.0297** (0.9319) 0.1698** (0.0765) 0.0045** (0.0020) 0.8291** (0.3912) 0.7094 (0.6629) 0.8608** (0.4268) 0.4870* (0.2681) 0.0408 (0.0946) 13.3125*** (5.1422) 0.2162* (0.1222) 0.6432 (0.5428) 0.5929 (1.5934) Yes 2.1429** (0.8457) 0.1746** (0.0708) 0.0046** (0.0019) Robust standard errors in parentheses (two-tailed tests). * Significant at 10%. ** Significant at 5%. *** Significant at 1%. 13.62 0.0182 13.59 0.0931 52.10 0.0000 1.3596 (0.9013) 1.0145 (1.0255) 0.8035 (0.8871) 0.5544 (0.7897) 0.3435* (0.1783) 32.86 0.0018 27.0191 0.0413 30.5829 0.0152 16.1952 0.1340 17.5251 0.0933 0.0056 0.1614 22 206 630 0.0063 0.1506 25 206 630 0.5067 – 25 201 483 0.3409 – 25 201 483 J. Cieślik et al. / International Business Review 24 (2015) 772–780 778 derivative turns out to be positive when the number of years after internationalization is less than approximately 10 years or greater than approximately 15 years. Thus, all other factors being equal, the effect of export experience is positive during the first ten years after the first export sale, then it becomes negative and remains such until the firm had been operating for about 15 years on the international markets, when it again returns to positive territory. Fig. 1 represents this relationship graphically. Hypothesis H2 proposes that the growth of the number of export countries and export performance have an inverted Sshaped relationship: performance is increasing at both low and high levels of market spreading but it decreases at moderate levels of market spreading. The regression coefficients for the variable log_countrygr in Model 3 are significantly positive during year t and significantly negative for year (t 2) and year (t 3). Because we did not find the inverted S-shaped relationship between the growth of the number of export countries and export performance, strictly speaking H2 is not supported. It is worth noting, however, that our results indicate that market spreading activities and performance have an inverted U-shaped relationship, which is the front part of the inverted S-shaped relationship. This suggests that H2 may be at least partially supported. Hypothesis H3 predicts that export performance is not related to the growth of the share of the main export market. Although for the most part the regression coefficients for the variable log_prcmjrexpgr in Model 4 are not significant, which suggests that H3 appears to be at least partially supported, because the negative coefficient for year (t 4) is statistically significant, strictly speaking, H3 is not supported. 5. Discussion and conclusions In this study, we have evaluated the impact of international experience and market scope strategy on the export performance of Polish firms during an eight-year period that includes the country’s 2004 accession to the EU. Three important findings emerge from our study that can offer theoretical and practical insights to both international business scholars and practitioners. First, similar to previous findings (Contractor et al., 2003 – for capital intensive sectors; Lee, 2010 – based on the first three phases of the M-shaped model), export experience and performance have an inverted S-shaped relationship, with performance increasing at low and high levels of experience but decreasing at moderate levels of experience. We determined that the first phase of growth of export sales, sustained by the sheer volume of transactions which are scattered throughout multiple countries, may continue for about ten years. However, firms must be aware that this growth is not typically sustainable and that during the following period of approximately five years their export performance may decline. At the end of this second period, firms will either have failed or survived. The outcome will be dependent on their ability to use their new knowledge and experience to start exploring and not merely exploiting the markets. In the case of firms operating in Poland, our analysis shows that this next successful phase of growth will take place about 15 years after the firm has initiated its first export sale as a member (or soon to be member) of the EU. Under the RBV and DCV frameworks, firms would have used their slack resources and exhausted their capabilities after the first phase of growth when the majority of their deployment aims are focused toward easily obtainable export market opportunities; however, firms cannot remain on their positive international growth and expansion paths unless they replenish their resources and renew their capabilities so that they are able to address the needs of the lucrative but somewhat distant opportunities. Comparing the experiences of Polish firms after Poland joined the EU with that of Spanish firms after Spain’s 1986 entry into the EU (the two countries are of similar size and population), we note that this event also accelerated the internationalization of Spanish firms and produced a sizeable increase in commerce and two-way Fig. 1. Inverted S-shaped relationship between export experience and performance (N = 321). J. Cieślik et al. / International Business Review 24 (2015) 772–780 direct investment between Spain and the EU (Durán, 1999; Mas et al., 2006). Spanish firms reached the highest degree of multinationalization and the greatest foreign direct investments (FDI) expansion about seven years after Spain’s accession (Durán, 1999; Mas et al., 2006). In this study, similar to Spanish firms, we found that Polish firms reached the peak of their export performance about ten years from their first export sale. Second, we find that the market spreading activities are more beneficial to exporting firms than the market concentration activities as the concentration approach worsens the firms’ export performance in the long run. However, the firms may not immediately experience consistent export success with the market spreading strategy. At the beginning, the euphoria caused by a firm’s ability to be present in a large number of foreign markets at once frequently comes at the expense of a shallow penetration in each of the foreign markets, often the result of a limited marketing budget shared among multiple markets. This may cause a subsequent decline in the firm’s export sales. Only after having survived this dangerous phase of market exploitation will the firm start organizing its market spreading efforts more efficiently – thanks to the new learning and experience that they have gained during their initial expansion. During this initial market exploration stage, the firm’s export performance will slowly start improving again, as they become better at adapting and aligning their newly acquired resources and capabilities with their export market landscapes (Lisboa et al., 2013; March, 1991; Prange & Verdier, 2011). These adaptation and alignment activities are afflicted with challenges. This is suggested by the fact that we found no support for the final ‘‘positive’’ phase of the inverted S-shaped relationship between the growth of the number of export countries and export performance. One can interpret this nonfinding to mean that, on average, the Polish firms in our study were not able to recover from these initial difficulties and thus had to withdraw from some export markets and contract their international market expansion endeavors. Additional explanations for this non-finding could be that it might take some time for Polish firms in our study to adapt and align their newly acquired resources and capabilities with their export market landscapes in a timely fashion or that it might take some time for their ambidextrous pursuits to result in higher export performance outcomes (Lisboa et al., 2013; March, 1991; Prange & Verdier, 2011). Third, while we have hypothesized that there would not be a significant positive nor negative relationship between the firms’ growth of the share of the main export market and the firms’ export performance, it is worthwhile to note that our findings suggest that there is a negative relationship between the two variables during the later post-entry period. This suggestion of a negative relationship should not be disregarded, given that previous scholars (Allen & Pantzalis, 1996; Mas et al., 2006; Pantzalis, 2001) have also cautioned about the negative impact of internationalization efforts that concentrate on only a few export markets. This negative finding may be evidence that the Polish firms in our study were becoming too dependent on their main export market, and thus, without an adequate level of diversification of the export base (Al-Marhubi, 2000; Grossman & Helpman, 1991; Herzer & Nowak-Lehmann, 2006), they may have over time exposed themselves to a high risk and low return internationalization condition (Sleuwaegen & Onkelinx, 2014). Arguably, eventually the Polish firms in our study might find themselves reaching the point of saturation with their main export market, where the firms’ resources and capabilities will no longer allow them to exploit and extract much from their main export market due to conditions such as intensified competition, market maturation, limited opportunities and demand shrinkages (Dean, Mengüç, & Myers, 2000). 779 This study’s insights should be relevant and useful to international business and marketing managers of a country that is about to enter into a new free-trade zone or a new trade agreement where there will be new export opportunities to exploit in the short-term and explore in the long-term. The increased awareness and understanding of the three key periods that their firms would likely pass through [i.e., (1) a phase of a rapid and frequently chaotic and euphoric increase of exporting activities, (2) a phase of a subsequent decline in export performance, and (3) a phase of a gradual optimization of market spreading efforts by new learning and experience] should help managers in their strategic deployment of resources and utilization of capabilities, as well as in their strategic decisions about which markets the companies should engage with and disengage with. Moreover, the estimated length of time that their firms would have to spend in each of the three post-entry periods would help further guide their management of their resources and capabilities and allow for the optimal application of the resources and capabilities. There are limitations to this study. First, our sample period is only from 2003 to 2010. 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