Covid-19 pandemisi başta sağlık olmak üzere birçok alanda krize neden olan ekonomik ve sosyal bir krizdir. Çalışmamızda Covid-19pandemisi sırasında rekabet stratejileri ile pazar performansı arasındaki ilişkide girişimcilik odaklılığın aracılık rolü incelenmektedir. ISO 500 listesinde yer alan 137 firmadan toplanan anketlerle yapılan çalışmanın analizleri SPSS 20.0 istatistik programı ile analiz edilmiştir. Çalışmanın sonuçlarına bakıldığında işletmelerin maliyet liderliği ve farklılaşma stratejileri ile pazar performansı arasındaki ilişki kanıtlanmıştır. Rekabet stratejileri ile pazar performansı arasındaki ilişkide girişimcilik odaklılığın aracılık rolü incelenmiş, farklılaşma stratejisi ile pazar performansı arasındaki ilişkide girişimcilik odaklılığın kısmi etkisi kanıtlanmış ancak maliyet liderliği ile pazar performansı arasındaki ilişkide girişimcilik odaklılığın herhangi bir etkisinin olmadığı ortaya konmuştur. Çalışma bulguları, işletmelerin yürüttüğü rekabet stratejilerinin Covid-19pandemi dönemindeki belirsizlik ortamında pazar performansını nasıl etkilediği ve bu ortamda girişimcilik odaklılığın rolü konusunda alana katkı sunmaktadır.

Effective renewable energy policy requires benchmarks that reflect countries’ structural energy characteristics rather than generic performance rankings. This study develops an explainable machine-learning framework that identifies structurally comparable peers and derives peer-relative priorities, using annual World Bank data for 37 Organisation for Economic Co-operation and Development (OECD) countries over 2010–2021. Thirteen energy, economic and demographic indicators are standardized and analysed with principal component analysis, Ward hierarchical clustering and cosine similarity, supported by bootstrap, density-based, temporal, scaling and leave-one-country-out robustness checks. Random Forest with Gini, permutation and SHAP importance is used descriptively to characterize the clusters, and directionally filtered standardized gaps between Türkiye and its closest peer form a Strategic Gap Priority Index (SGPI). Three weakly separated regimes emerge: renewable-intensive economies, larger urbanized fossil-based economies, and less urbanized lower-income economies. Under historical averages, Türkiye and the United Kingdom are mutually closest peers, and coal-based electricity generation and net energy import dependence are the two leading SGPI priorities under all weighting schemes tested. These results are conditional on the profile definition: adding annual trends makes Hungary the closest peer, and excluding hydropower makes non-hydro renewable generation the second priority.

Araştırmanın amacı, yer hizmetleri çalışanlarının iletişim doyumu ve duygusal bağlılık ilişkisinde kurumsal itibarın aracı rolünü belirlemek ve iletişim doyumunun demografik değişkenlere göre istatistiki olarak farklılık gösterip göstermediğini saptamaktır. Bu amaç doğrultusunda; Türkiye’de faaliyet gösteren TGS Yer Hizmetleri A.Ş., Çelebi Hava Servisi A.Ş. ve Havaalanları Yer Hizmetleri A.Ş. şirketlerinde aktif olarak 213 iş görenden online anket yöntemiyle veri elde edilmiştir. Elde edilen bu veriler güvenirlik, korelasyon, basit doğrusal regresyon, çoklu varyans analizi, bağımsız örneklem t testi ve tek yönlü varyans analizi ile test edilmiştir. Gerçekleştirilen güvenirlik analizi sonucunda araştırmada kullanılan ölçeklerin yüksek iç tutarlılığa sahip olduğu belirlenmiştir. Regresyon analizleri sonucunda; iletişim doyumu ile duygusal bağlılık arasında, iletişim doyumu ile kurumsal itibar arasında, kurumsal itibar ile duygusal bağlılık arasında anlamlı bir ilişki bulunduğu ayrıca iletişim doyumu ve duygusal bağlılık arasındaki ilişki üzerinde kurumsal itibarın tam aracılık etkisinin olduğu belirlenmiştir. İletişim doyumundaki 1 birimlik artış duygusal bağlılık üzerinde 0.322 birimlik bir artışı, iletişim doyumundaki 1 birimlik artış kurumsal itibar üzerinde 0.699 birimlik bir artışı kurumsal itibardaki 1 birimlik artış duygusal bağlılık üzerinde 0.434 birimlik bir artışı gerçekleştirdiği ortaya çıkmıştır. Gerçekleştirilen farklılık analizleri sonucunda; İletişim doyumunun cinsiyete ve medeni duruma göre anlamlı bir farklılık gösterdiği, çalışanların yaşına, eğitim durumuna, çalışma süresine, çalışma departmanına ve çalışanların unvanlarına göre ise istatistiksel olarak anlamlı bir farklılık göstermediği tespit edilmiştir.

This study examines whether corporate sustainability discourse generates uniformly positive employee reactions or whether its effects are bounded by credibility dynamics. Drawing on signaling theory and legitimacy perspectives, we propose that sustainability communication exhibits a non-linear relationship with employee evaluations. Specifically, we argue that sustainability intensity initially enhances employee evaluations but produces diminishing and eventually negative returns beyond a credibility threshold. Furthermore, we theorize that greenwashing signals reshape this non-linear relationship by altering its curvature and shifting the turning point to lower levels of sustainability intensity. Using a longitudinal firm–year panel design, we test these arguments with weighted fixed-effects models and turning-point estimations. The results reveal a significant inverted-U relationship between sustainability discourse intensity and employee evaluations. Importantly, greenwashing signals do not independently reduce evaluations; instead, they amplify the negative curvature of the relationship and significantly lower the credibility threshold at which evaluative backlash emerges. These findings extend sustainability and management research by demonstrating that sustainability communication is not a uniformly beneficial strategic tool. Rather, its effectiveness depends on perceived credibility and contextual trust conditions. By introducing the notion of a shifting credibility threshold, this study provides a more nuanced understanding of how sustainability discourse influences internal stakeholder evaluations.

Urban development in medium-sized provinces is increasingly influenced by the interplay of demographic change, socio-economic disparity, and labour market structure. However, these dimensions are frequently examined in isolation, which limits their utility for integrated regional planning. This study offers a planning-oriented assessment of Amasya Province, Türkiye, by integrating population projections, district-level socio-economic disparity analysis, and labour market indicators to evaluate the province’s developmental trajectory toward 2035. The study utilizes official population data for 2007–2024, district-level socio-economic status scores for 2023, and provincial labour market indicators. Linear trend projection and compound annual growth rate analysis were employed to estimate population change, while the Gini coefficient, Theil index, and coefficient of variation were used to assess intra-provincial socio-economic disparities. Labour market performance was evaluated through participation, employment, unemployment, and employment-to-participation efficiency indicators. The results indicate that Amasya is projected to experience a moderate population increase, reaching approximately 350,118 inhabitants by 2035. Growth is anticipated to remain concentrated primarily in the Central District and Merzifon, while socio-economic advantages also exhibit a central–peripheral pattern. Labour market indicators suggest relatively stable employment performance, although more detailed sectoral, gender, and age-specific analyses are necessary for more robust conclusions. The study contributes an integrated framework for linking demographic projection, socio-economic hierarchy, and labour market capacity in medium-sized provincial planning. The findings suggest that future planning should focus on managing growth in central districts while supporting balanced development in peripheral districts.

This study develops a multidimensional, indicator-based framework for assessing whether the expansion of research and development (R&D) resources in Türkiye is accompanied by broadly distributed innovation capacity, digital market integration, and ecosystem dynamism. The analysis uses the latest available official TurkStat tables, whose reference periods span 2015–2025, and treats them as a diagnostic profile rather than a longitudinal or causal dataset. Gross domestic R&D expenditure reached TRY 651.8 billion in 2024, and the business enterprise sector accounted for 64.8% of the total. R&D expenditure was geographically concentrated: İstanbul and Ankara together represented 61.2% of national expenditure. During 2022–2024, product innovation rates rose from 21.6% among small enterprises to 45.1% among large enterprises, while information and communication and scientific R&D activities each recorded a product specialisation ratio of 2.19. In 2025, 93.6% of enterprises had fixed-line internet access, but only 8.6% had a connection of at least 1 Gbit/s; in 2024, 12.4% made web sales and 27.8% of web sellers sold abroad. The proposed Strategic Innovation and R&D Capacity Index (SIRDCI) is therefore presented as a transparent conceptual diagnostic. A partial firm-size proxy is demonstrated only with indicators available at a common firm-size level; ecosystem dynamism remains a national contextual dimension because it cannot be disaggregated by firm size. The descriptive results reveal a positive firm-size gradient, marked sectoral and regional concentration, and a gap between digital access and commercialisation. These patterns do not establish causal mechanisms; instead, they identify areas that may warrant further capability-oriented policy attention and evaluation.