Author

Ralph Sonntag

Observed name: Ralf Sonntag

Institutions: Dnipro State Agrarian and Economic University, University of Applied Sciences Stralsund, University of Customs and Finance, Hochschule für Technik und Wirtschaft Dresden – University of Applied Sciences

Observed institutions: Dnipro State Agrarian and Economic University, University of Applied Sciences Stralsund, University of Customs and Finance, Hochschule für Technik und Wirtschaft Dresden – University of Applied Sciences

ORCID: 0000-0003-1976-4775

Observed ORCID: 0000-0003-1976-4775

OpenAlex ID: A5072126647

Is increasing a share of R&D expenditure in GDP a factor in strengthening the level of innovation development in Ukraine compared with GII’s top countries?

2023 · Olena Dobrovolska, Ralph Sonntag, et al. · Problems and Perspectives in Management · 14

A Fair Investment Environment: The Impact of the Shadow Economy, the Harshness of the Courts Against Corrupt Officials, Tax Pressure and Restrictions on Business

2024 · Olena Dobrovolska, Ralph Sonntag, et al. · Business Ethics and Leadership · 13

Knowledge creation, knowledge impact and knowledge diffusion: how do they connect with higher education?

2023 · Olena Dobrovolska, Ralph Sonntag, et al. · Knowledge and Performance Management · 12

Tax policy and activation of internal factors of economic growth: EU experience for Ukraine

2024 · Olena Dobrovolska, Ralph Sonntag, et al. · Public and Municipal Finance · 11

Financial and investment indicators for accelerating innovation development: Comparison of GII leaders and Ukraine

2023 · Olena Dobrovolska, Ralph Sonntag, et al. · Investment Management and Financial Innovations · 10

Risk management through a Kohonen map bank business model survey: The case of Ukraine

2024 · Olena Zarutska, Olena Dobrovolska, et al. · Banks and Bank Systems · 7

Structural and comparative analysis of R&D funding impact on the level of innovation development: The empirical evidence of GII’s leaders and Ukraine

2023 · Olena Dobrovolska, Ralph Sonntag, et al. · Innovative Marketing · 6

Umfragen erstellen und auswerten: kompakt und leicht verständlich für Studierende und junge Forschende

2023 · Wolfgang Ortmanns, Ralph Sonntag · 5

The influence of health insurance on coverage of a country’s population with medical services

2024 · Olena Dobrovolska, Wolfgang Ortmanns, et al. · Insurance Markets and Companies · 1

Key entrepreneurial competences in Algeria, Egypt and Jordan

2022 · Fabiola Elisa Garcia Tobar, Marlen Walther, et al. · Business and management · 1

Review of: "The influence of perceived financial security on social intention entrepreneurs"

2023 · Ralph Sonntag · Qeios

Works count: 11

Citation count: 80

H-index: 6

I10-index: 5