Bargaining over Managerial Contracts in Delegation Games: The Sequential Move Case

This paper examines the bargaining problem between firms' owners and managers over their managerial delegation contracts in a duopolistic market with differentiated-products. Assuming that delegated managers make every managerial decision in the market, we analyze how the managers'' bargaining power affects social welfare and firms'' profits for each case of sequential quantity competition and sequential price competition. We show that the relative increase in the managers'' bargaining power leads to decrease in firms'' profits but improves social welfare in each case, and that this result holds for any case of the degree of product differentiation. This shows that the existing results obtained for the simultaneous move case and a single homogeneous product case are robust in the sequential move cases.

Sampling-Frequency-Independent Universal Sound Separation

This paper proposes a universal sound separation (USS) method capable of handling untrained sampling frequencies (SFs). The USS aims at separating arbitrary sources of different types and can be the key technique to realize a source separator that can be universally used as a preprocessor for any downstream tasks. To realize a universal source separator, there are two essential properties: universalities with respect to source types and recording conditions. The former property has been studied in the USS literature, which has greatly increased the number of source types that can be handled by a single neural network. However, the latter property (e.g., SF) has received less attention despite its necessity. Since the SF varies widely depending on the downstream tasks, the universal source separator must handle a wide variety of SFs. In this paper, to encompass the two properties, we propose an SF-independent (SFI) extension of a computationally efficient USS network, SuDoRM-RF. The proposed network uses our previously proposed SFI convolutional layers, which can handle various SFs by generating convolutional kernels in accordance with an input SF. Experiments show that signal resampling can degrade the USS performance and the proposed method works more consistently than signal-resampling-based methods for various SFs.Comment: Submitted to ICASSP202