With the rapid growth of the smartphone and tablet market, mobile application (App) industry that provides a variety of functional devices is also growing at a striking speed. Product life cycle (PLC) theory, which has a long history, has been applied to a great number of industries and products and is widely used in the management domain. In this study, we apply classical PLC theory to mobile Apps on Apple smartphone and tablet devices (Apple App Store). Instead of trying to utilize often-unavailable sales or download volume data, we use open-access App daily download rankings as an indicator to characterize the normalized dynamic market popularity of an App. We also use this ranking information to generate an App life cycle model. By using this model, we compare paid and free Apps from 20 different categories. Our results show that Apps across various categories have different kinds of life cycles and exhibit various unique and unpredictable characteristics. Furthermore, as large-scale heterogeneous data (e.g., user App ratings, App hardware/software requirements, or App version updates) become available and are attached to each target App, an important contribution of this paper is that we perform in-depth studies to explore how such data correlate and affect the App life cycle. Using different regression techniques (i.e., logistic, ordinary least squares, and partial least squares), we built different models to investigate these relationships. The results indicate that some explicit and latent independent variables are more important than others for the characterization of App life cycle. In addition, we find that life cycle analysis for different App categories requires different tailored regression models, confirming that inner-category App life cycles are more predictable and comparable than App life cycles across different categories.
Polycarp Olaku Alumbugu, Winston W. M. Shakantu and Abel John Tsado
Outbound logistics channels are of crucial importance for an efficient construction materials logistics management and impacts on customer satisfaction. However, there is limited knowledge of the outbound logistics channels for construction material in Nigeria. This study aims to identify and examine the current outbound logistics channels used by the Nigerian construction material manufacturing industries. A quantitative research method using a case study approach was adopted in this research. The purposive sampling technique was chosen, where six construction material manufactured and distributed within five states capital and Abuja in the North-central region of Nigeria were selected for this study. A research instrument was developed and used in conjunction with an observation protocol in the form of a template. The data were collected through observations, direct measurement onsite and archival records of transactions. A descriptive method of data analysis was employed to analyse the data. Our findings indicate that there exist six alternative outbound logistics channels that can be used separately or in combination with each other to deliver materials to end users. The study concludes that the research finding provides a potential knowledge and understanding of the manufacturers’ outbound logistics channels that can be used at the start of a project to accomplish effective planning and delivery of the whole project. The study also established the average transportation cost per average ton and average transportation cost per average distance driven for construction material delivery. This information can be used for construction material transportation management.
This paper examines the opportunity of exchange rate regime flexibilization in Morocco under the policy of capital account liberalization. Basing on our findings in Ezzahid and Maouhoub (2014), we develop a new theoretical game model with four economic agents, namely: monetary authorities, government, foreign firms and domestic firms. We explore the optimal exchange rate regime for Morocco under new conditions such as the presence of a compensation fund effect, restrictions on capital outflows, etc. Starting with a first simulation based on current economic parameters, the results show that losses under a flexible exchange rate regime are lower than losses under a fixed exchange rate regime. Varying different parameters allow discovering the ‘appropriate level’ from which monetary authorities should move toward the flexible exchange rate.
Abel John Tsado, Winston W. M. Shakantu and Polycarp Olaku Alumbugu
Innovation is at the core of micro, small and medium enterprises (MSMEs)/construction micro, small, and medium enterprises (CMSMEs) world over. Be that as it may, the overwhelming sorts of innovation among enduring and effective CMSMEs, and the effects of such innovation(s) on the achievement of the CMSMEs is hazy. The purpose of this paper is to investigate the transcendent sorts of innovation among the successful construction micro, small, and medium enterprises. The examination utilized subjective research technique to exploratively decide the sorts of innovations. Recorded interviews comprised the exploration of information from 43 CMSMEs through 14 states out of the 19 states constituting northern Nigeria. While a semi-structured interview with open-ended questions was utilized to gather information through judgmental and snowballing examining procedure at stage 1 and 2 individually. Information was transcribe interpreted, open and axial codes examined and interpreted. The outcome uncover product innovation as the main type of innovation among different types of innovation and generally in charge of the accomplishment of the CMSMEs considered. The investigation improves the collection of learning regarding basic types of innovations within CMSMEs and proposes that effective CMSMEs give more consideration to product innovation to trigger their prosperity and different types of innovation. Moreover, the aftereffect of the examination proposed failing CMSMEs can endure when they focus on product innovation.
Jon Lerche, Hasse Neve, Søren Wandahl and Allan Gross
Few empirical studies have previously reported on the implementation of takt planning and utilizing Deming cycles (PDCA) to control construction workflows continuously. This paper presents a case study from the offshore renewable industry, closely related to construction. The paper aims to develop and evaluate a conceptual model combining takt planning and the Deming cycle within the offshore wind construction environment. The conceptual model has through interactions with construction experts been modified for a visual board implementation, covering two alternative processes with a fixed number of technicians per performing team. The knowledge base for the conceptual model is based on Takt planning implementation from the lean construction community and PDCA implementation from the lean production community. The main contribution of this paper is the development and evaluation of the conceptual model combining takt planning and the Deming cycle in a construction environment. This conceptual model has potential implications in the construction and refurbishment industry.
Yakubu N. Sanda, Natalia A. Anigbogu, Ezekiel A. Rugu and Laraba Y. Babas
Studies have shown that project risks are responsible for the failure of most Public Private Partnership (PPP) projects. The study examined the critical risk factors associated with PPP housing projects. Data for the research was obtained through a questionnaire. The data were analysed using descriptive statistics and mean ratings. Corruption and bribery among contracting parties (0.681), Exchange rate volatility (0.621) Availability of development funds (0.599) and Change in government (0.580) were the critical risk factors identified. The study also indicated that project cost is highly influenced by lack of development funds and changes in interest rates. The quality of PPP housing projects in Abuja was found to be influenced by partner selection risks. The study suggested a competitive, transparent, and efficient bid process to eliminate corruption, workable strategies for ensuring the availability of development funds at a cheaper rate and adopting mixed strategy in which government continues to provide social housing to the low-income class while providing the enabling environment for the private sector to thrive.
Inflation expectations are very important when it comes to monetary policy and its decisions. In countries which are applying inflation targeting, inflation expectations reflect prediction of economic agents of movement of inflation rate in mid and long term. Anchored inflation expectations and their movements within target tolerance band are pointing to effectiveness of the inflation targeting strategy. Consistent with the best international practice, after introducing the inflation targeting regime in January 2009, the National Bank of Serbia began monitoring and analysing inflation expectations of economic agents (financial sector, corporate sector, trade unions, and households). The aim of this paper is to analyse inflation expectations in Serbia, but also to give a comparative analysis of inflation expectation of other countries which are using inflation targeting and floating exchange rate, as is the case of the National Bank of Serbia.
The effect of bank heterogeneity on the transmission of monetary policy is capturing an increasing attention, and the debate on how bank specific characteristics may determine their reaction to monetary actions is mounting. This paper participates in this flow of research by studying the reaction of 40 banks operating in Lebanon between 1994 and 2017, to a change in lending interest rate, taking into consideration: size, market power, capitalisation, credit risk, and liquidity. The empirical results show that the impact of a change in interest rate on loan supply depends on bank market power and bank liquidity only. Consequently, interest rate channel in Lebanon operates through banks with high market power and banks with high liquidity stocks.
Amjad Pirotti, Abolfazl Keshavarzsaleh, F. A. Mohd Rahim and Norhanim Zakaria
Although success is a word that encapsulates a general and wide idea and it is challenging to provide a definite and a consensus definition from all individuals concerned, for many years, there has been a growing interest in identification of the success factors and the relationship with project success. In this research, the main objective investigates the relationship between top management, project mission, personnel, communication and Schedule/Plan and project success in construction industry in Malaysia. A survey was conducted among Managers and Employees of construction companies registered with Construction Industry Development Board (CIDB) of Malaysia and the correlation and regression analysis was carried out in order to test the hypotheses of the study. Key areas are now offered that practitioners and academics should further explore to contribute to the knowledge body on project success and to explore in more details which factors affect project success in construction industry in Malaysia.