This study analyzes the real estate production function and economic depreciation of structures by using data from Japan and the U.S. Real estate exhibits decreasing returns in the U.S. but constant returns in Japan. Land and structures are substitutes in both countries. The property depreciation rate is larger for newer and denser properties located away from the Central Business District (CBD...

We build a quality ladders product cycle model with Northern innovation, Northern imitation, and Southern imitation. Our model generalizes Grossman and Helpman (1991a) to allow Northern imitation. Similar to Segerstrom (1991), successful Northern imitators collude with innovators. Changes in resources and R&D subsidies generate substitution in Northern R&D between innovation and imitation and s...

There are some specific features of the non-radial DEA (data envelopment analysis) models which cause some problems under the returns to scale measurement. In the scientific literature on DEA, some methods were suggested to deal with the returns to scale measurement in the non-radial DEA models. These methods are based on using Strong Complementary Slackness Conditions in the optimization theor...

We use a model of real-time decentralized information processing to understand how constraints on human information processing affect the returns to scale of organizations. We identify three informational (dis)economies of scale: diversification of heterogeneous risks (positive), sharing of information and of costs (positive), and crowding out of recent information due to information processing...

Online review systems (ORS) such as TripAdvisor or Yelp collect numeric evaluations from reviewers using interval scales. However, the UI of interval scales differ remarkably across ORS, even though prior research suggests that design cues of the interval scale can bias individual’s interpretation of the scale and thus the numeric evaluations. The impact of the UI on numeric evaluations is part...

efficiency is defined as a concept that determines the input output ratios in an economic system. data envelopment analysis method is a useful tool to estimate the efficiency of a unit. the purpose of this study was to estimate technical efficiency and to determine return to scale of holstein cattle farms in guilan province. therefore, the information including the number of labor and dairy cow...

conclusions rice soup regimen was highly effective and inexpensive in the treatment of acute diarrhea in children. thus, in addition to the common treatment by g-ors, rice soup can be consumed simultaneously with g-ors. results at the end of study, the time for treating acute watery diarrhea in the intervention and control groups were 21.10 ± 8.81 and 34.55 ± 5.82 hours (p < 0.001) and hospital...

Objective: The aims of this study were to determine energy efficiency and CO2 use pattern of grape production in Zanjan province, Iran by a non-parametric method of data envelopment analysis (DEA). Methods: Initial data were collected using a face to face questionnaire from 42 orchards in Abhar city of Zanjan province which is one of the most important centers of grape production in ...