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Abstract Purpose: To analyze the influence of trademark registration and patent application on the economic-financial performance of publicly traded companies in the Brazilian manufacturing industry between 1995 and 2014. Originality/value: The approach offers critical reflections for decision making by firm management and its investors. Analyses of companies' economic and financial performance in the Brazilian manufacturing industry, based on the strategy of protecting their intellectual property, especially considering the time interval analyzed, have not been identified in recent literature. Design/methodology/approach: Manufacturing companies listed on the Brazilian stock exchange were studied. Between1995 and 2014 were considered in a sample composed of 49 companies and 746 observations. Estimates were made using panel regression models. The dependent variables are market value and return on assets. The independent variables (controlled) are trademark registrations and patent applications (intellectual property). Findings: A positive and statistically significant relationship was observed between trademark registrations and patent applications and the firms' market value. As they are assets that reflect the company's image in the market, the protection of trademarks seems to reflect well on the perception of the company's shareholders, which impacts the market value. In the case of patents, the positive effect on market performance is related to the investor's positive expectation of the firm's application in technology, innovation, and intellectual property. No positive impact of intellectual property on the return on assets has been identified.

"We provide an extensive and general investigation of the effects on industry performance (profits and social welfare) of exogenously changing the number of firms in a Cournot framework. This amounts to an in-depth exploration of the well-known trade-off between competition and production efficiency. We establish that under scale economies, welfare is maximized by a finite number of firms. Our results shed light on several theoretical issues and policy debates in industrial organization, including the relationship between the Herfindahl index and social welfare, free versus socially optimal entry, concentration and profitability, destructive competition and natural monopoly. Our analytical approach combines simplicity with generality." (author's abstract)

"This paper provides a thorough analysis of oligopolistic markets with positive demand-
side network externalities and perfect compatibility. The minimal structure
imposed on the model primitives is such that industry output increases in a firm's
rivals' total output as well as in the expected network size. This leads to a generalized
equilibrium existence treatment that includes guarantees for a nontrivial equilibrium,
and some insight into possible multiplicity of equilibria. We formalize the concept of industry viability and show that is it always enhanced by having more firms in the market and/or by technological improvements. We also characterize the effects of market structure on industry performance, with an emphasis on departures from standard markets. The approach relies on latticetheoretic methods, which allow for a unified treatment of various general results in
the literature on network goods. Several illustrative examples with closed-form solutions are also provided." (author's abstract)

Some of the most successful growth economies in the Pacific Rim have combined protectionist Import Substitution Industrialisation policies with export-oriented policies. This study provides a systematic rethinking of relationships between strategies within the Malaysian context