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Past research has identified innovation portfolio management as a key success factor for a firm’s new product development process. However, the relevant literature falls short in considering the strategic scope of innovation portfolio decision-making. To take a first step in this direction, Marcel Coulon defines the construct of ‘portfolio orientation’ as a strategic orientation. He develops a conceptual framework to identify performance effects of portfolio-oriented decision-making for new product development programs. Based on data of more than 200 German companies, he presents three papers. First, he addresses contingencies for portfolio orientation effectiveness to help understand interactions of formal innovation management with new product development issues inside and outside firm boundaries. Second, he identifies best performing portfolio types for specific levels of portfolio management formalization. Third, a variety of antecedents and their impact on a firm’s portfolio orientation are presented. Accordingly, the book is equally relevant for practitioners and academics in the fields of research and development management and innovation management, as well as strategic marketing management.
The aim of this study is to measure total transaction costs as well as the cost components for six German investment management firms from August 1st until October 31st 2001. The investigation is based on a unique order-level data set that includes all relevant information (e.g. time of investment decision, order-release to the broker and trade execution). For computing transaction costs we use tick by tick price data for the 75 stocks of the Euro Stoxx 50- and Stoxx 50-universe.
Volume weighted, i.e. effectively paid, one way transaction costs sum up to 66.76 bp. Market pact is the highest cost component and amounts to 27.93 bp for volume weighted averages. According to a regression analysis market impact is driven by high volatilities and bid ask spreads; market momentum induces market impact to fall, indicating mean reversion of stock prices. High free float and market activity do not influence the market impact, but lead – just as high volatilities and bid ask spreads - to a reduction in trading aggressiveness. Trading duration decreases with high volatility and diminishing bid ask spreads. Overall, the results illustrate that to some extent German investment management firms trade strategically. Nevertheless, a further reduction in market impact, and therefore an increase in investment performance, seems to be possible, if traders pay greater attention on the liquidity indicators known already at order release.