This study examines the 1924 Prague International Management Congress (PUYK) and 1935 London International Scientific Management Congress (LUYK), two of the international management congresses organized by different organizations between the two World Wars and guiding the advancement of management science, in the context of the Great Depression. It is known that the scientific management thought was actually dominant in the mentioned years and the human relations approach was on a more theoretical level. Scientific management thought, which emerged under the leadership of F. W. Taylor in America, found a wide application area and spread to Europe. Scientific management thought has greatly supported productivity in production with experiments and applications in various industries. However, the human relations approach has reached a dominant position in the field with both the negative approach towards the employees and the introduction of disciplines such as sociology and psychology in the scientific management thought. Although it is aimed whether the Great Depression, which started with the collapse of the Wall Street stock market in 1929 and negatively affected the whole world, has an impact on management research. The original copies of the congress books were accessed from the relevant archives in this framework. In this context, the document analysis technique was applied in the study and the qualitative method was used. Although the effects of the Great Depression on management science have been examined in previous studies, the fact that the study is based on congresses contributes to the literature in this respect.
Keywords: Scientific Management, Human Relations, 1929 Great Depression, Interwar years