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  1. Understanding big data
    data calculus in the digital era
    Autor*in: Bolton, Patrick; Holmström, Bengt; Maskin, Eric; Pissaridēs, Christophoros A.; Spence, Andrew Michael; Sun, Tao; Sun, Tianshu; Xiong, Wei; Yang, Liyan; Chen, Long; Huang, Yadong; Li, Yong; Luo, Xuan; Ma, Yingju; Ouyang, Shumiao; Zhu, Feng
    Erschienen: [2021]
    Verlag:  [University of Toronto - Rotman School of Management], [Toronto]

    Information processing has been defined as “the change (processing) of information in any manner detectable by an observer, a process that describes everything that happens in the universe, from the falling of a rock to the printing of a text file... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    Information processing has been defined as “the change (processing) of information in any manner detectable by an observer, a process that describes everything that happens in the universe, from the falling of a rock to the printing of a text file from a digital computer system.” Human society has long realized that information processing and sharing are essential to the pursuit of physical, social, and economic well-being. Knowing and sharing information about one’s surroundings is essential to success in the physical world. Knowing and sharing information about one’s “neighbors” is essential to success in the social world. “Knowing-your-customers” (KYC) in order to serve them well is the supreme norm for success in the business world. Sharing that information – the Yellow Pages practice that makes certain personal information, such as name, telephone number, and address public -- has become a tradition in modern human relations. The pervasive use of digitized information has reached a new height that we call the era of "big data." While this has led to unprecedented societal cooperation, it has also intensified three major concerns: How can we properly protect personal privacy in the age of big data? How do we understand and manage the ownership and distribution of benefits and risks arising from the use of data? Will the use of big data lead to "winner-take-all" markets that undermine competition to the detriment of consumers and society? These are the subjects of this report. We focus on analyzing concrete evidence about "big data" to draw conclusions on its impact. As Nobel Laureate Ronald Coase (1994) suggested, it is important to step away from pure "blackboard economics" that tends to only live in [a theoretician's] mind: "what we need is more empirical work ... An inspired theoretician might do as well without such empirical work, but ... the inspiration is most likely to come through the stimulus provided by the patterns, puzzles, and anomalies revealed by the systematic gathering of data, particularly when the prime need is to break our existing habits of thought."This viewpoint is particularly relevant because, unlike many production inputs, data has the properties of non-rivalry and non-separability. Unless an evidence-based, integrated and multi-stakeholder approach is adopted, users can be unintentionally hurt in the name of protection. We don’t want to "dismember the goose that laid the golden egg."

     
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    Auflage/Ausgabe: This version is updated on February 5, 2021
    Schriftenreihe: [Rotman School of Management working paper ; no. 3791018]
    Schlagworte: big data; data economics; information economics; privacy; market competition
    Umfang: 1 Online-Ressource (circa 86 Seiten), Illustrationen
  2. Career Spillovers in Internal Labor Markets
    Autor*in: Bianchi, Nicola; Bovini, Giulia; Li, Jin; Paradisi, Matteo; Powell, Michael L.
    Erschienen: 2021
    Verlag:  National Bureau of Economic Research, Cambridge, Mass

    This paper studies career spillovers across workers, which arise in firms with limited promotion opportunities. We exploit a 2011 Italian pension reform that unexpectedly tightened eligibility criteria for the public pension, leading to sudden,... mehr

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    Sächsische Landesbibliothek - Staats- und Universitätsbibliothek Dresden
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    Universitätsbibliothek Freiburg
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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
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    Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    This paper studies career spillovers across workers, which arise in firms with limited promotion opportunities. We exploit a 2011 Italian pension reform that unexpectedly tightened eligibility criteria for the public pension, leading to sudden, substantial, and heterogeneous retirement delays. Using administrative data on Italian private-sector workers, the analysis leverages cross-firm variation to isolate the effect of retirement delays among soon-to-retire workers on the wage growth and promotions of their colleagues. We find evidence of spillover patterns consistent with older workers blocking the careers of their younger colleagues, but only in firms with limited promotion opportunities

     
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    Schriftenreihe: NBER working paper series ; no. w28605
    Schlagworte: Rentenreform; Spillover-Effekt; Interner Arbeitsmarkt; Ältere Arbeitskräfte; Erwerbsverlauf; Karriereplanung; Italien
    Umfang: 1 Online-Ressource, illustrations (black and white)
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  3. Monetary policy spillovers, capital controls and exchange rate flexibility, and the financial channel of exchange rates
    Autor*in: Georgiadis, Georgios; Zhu, Feng
    Erschienen: July 2019
    Verlag:  Bank for International Settlements, Monetary and Economic Department, [Basel]

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    Schriftenreihe: BIS working papers ; no 797
    Umfang: 1 Online-Ressource (circa 56 Seiten), Illustrationen
  4. Exchange rate puzzles
    evidence from rigidly fixed nominal exchange rate systems
    Autor*in: Engel, Charles; Zhu, Feng
    Erschienen: 2019
    Verlag:  Bank for International Settlements, Monetary and Economic Department, [Basel]

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    Schriftenreihe: BIS working papers ; no 805 (August 2019)
    Umfang: 1 Online-Ressource (circa 49 Seiten), Illustrationen
  5. Corporate capture of blockchain governance
    Autor*in: Ferreira, Daniel Bernardo Soares; Li, Jin; Nikolowa, Radoslawa
    Erschienen: 27 January 2019
    Verlag:  Centre for Economic Policy Research, London

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    Schriftenreihe: Array ; DP13493
    Umfang: 1 Online-Ressource (circa 49 Seiten), Illustrationen
  6. Information transparency, multi-homing, and platform competition
    a natural experiment in the daily deals market
    Autor*in: Li, Hui; Zhu, Feng
    Erschienen: [2019]
    Verlag:  Harvard Business School, [Boston, MA]

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    Schriftenreihe: Working paper / Harvard Business School ; 20, 065
    Umfang: 1 Online-Ressource (circa 46 Seiten), Illustrationen
  7. Time dependency, data flow, and competitive advantage
    Autor*in: Valavi, Ehsan; Hestness, Joel; Iansiti, Marco; Ardalani, Newsha; Zhu, Feng; Lakhani, Karim R.
    Erschienen: [2021]
    Verlag:  Harvard Business School, [Boston, MA]

    Data is fundamental to machine learning-based products and services and is considered strategic due to its externalities for businesses, governments, non-profits, and more generally for society. It is renowned that the value of organizations... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Data is fundamental to machine learning-based products and services and is considered strategic due to its externalities for businesses, governments, non-profits, and more generally for society. It is renowned that the value of organizations (businesses, government agencies and programs, and even industries) scales with the volume of available data. What is often less appreciated is that the data value in making useful organizational predictions will range widely and is prominently a function of data characteristics and underlying algorithms. In this research, our goal is to study how the value of data changes over time and how this change varies across contexts and business areas (e.g. next word prediction in the context of history, sports, politics). We focus on data from Reddit.com and compare the value’s time-dependency across various Reddit topics (Subreddits). We make this comparison by measuring the rate at which user-generated text data loses its relevance to the algorithmic prediction of conversations. We show that different subreddits have different rates of relevance decline over time. Relating the text topics to various business areas of interest, we argue that competing in a business area in which data value decays rapidly alters strategies to acquire competitive advantage. When data value decays rapidly, access to a continuous flow of data will be more valuable than access to a fixed stock of data. In this kind of setting, improving user engagement and increasing user-base help creating and maintaining a competitive advantage

     
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    Schriftenreihe: Working paper / Harvard Business School ; 21, 099
    Schlagworte: Economics Of Ai; Value Of Data; Perishability; Time Dependency; Flow Of Data; Data Strategy; Data and Data Sets; Value; Strategy; Competitive Advantage
    Umfang: 1 Online-Ressource (circa 24 Seiten), Illustrationen
  8. Haipai xiaoshuo lun
    Autor*in: Li, Jin
    Erschienen: 2005 nian 1 yue
    Verlag:  Xiuwei zixun keji gufen youxian gongsi, Taibei

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    Sprache: Chinesisch
    Medientyp: Buch (Monographie)
    ISBN: 9867614801
    Weitere Schlagworte: Literatur / China / Shanghai; Literatur / China / Moderne
    Umfang: xviii, 238 Seiten, 21 cm
  9. Visionäre
    Beteiligt: McBride, Aaron (Künstler); Tiemens, Erik (Künstler); Murnane, Michael (Künstler); Martiniére, Stephan (Künstler); Fu, Warren (Künstler); Jaeger, Alex (Künstler); Thompson, Derek (Künstler); Church, Ryan (Künstler); Sherman, M. Zachary (Künstler); Zhu, Feng (Künstler); Lee, Sang Jun (Künstler); Nagula, Michael (Übersetzer)
    Erschienen: [2020]
    Verlag:  Panini Verlags GmbH, Stuttgart

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  10. Monetary policy spillovers, capital controls and exchange rate flexibility, and the financial channel of exchange rates
    Autor*in: Georgiadis, Georgios; Zhu, Feng
    Erschienen: [2019]
    Verlag:  European Central Bank, Frankfurt am Main, Germany

    We assess the empirical validity of the trilemma (or impossible trinity) in the 2000s for a large sample of advanced and emerging economies. To do so, we estimate Taylor-rule type monetary policy reaction functions, relating the local policy rate to... mehr

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    We assess the empirical validity of the trilemma (or impossible trinity) in the 2000s for a large sample of advanced and emerging economies. To do so, we estimate Taylor-rule type monetary policy reaction functions, relating the local policy rate to real-time forecasts of domestic fundamentals, global variables, as well as the base-country policy rate. In the regressions, we explore variations in the sensitivity of local to base-country policy rates across different degrees of exchange rate flexibility and capital controls. We find that the data are in general consistent with the predictions from the trilemma: Both exchange rate flexibility and capital controls reduce the sensitivity of local to base-country policy rates. However, we also find evidence that is consistent with the notion that the financial channel of exchange rates highlighted in recent work reduces the extent to which local policymakers decide to exploit the monetary autonomy in principle granted by flexible exchange rates in specific circumstances: The sensitivity of local to base-country policy rates for an economy with a flexible exchange rate is stronger when it exhibits negative foreign-currency exposures which stem from portfolio debt and bank liabilities on its external balance sheet and when base-country monetary policy is tightened. The intuition underlying this finding is that it may be optimal for local monetary policy to mimic the tightening of base-country monetary policy and thereby mute exchange rate variation because a depreciation of the local currency would raise the cost of servicing and rolling over foreign-currency debt and bank loans, possibly up to a point at which financial stability is put at risk.

     
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    ISBN: 9789289935296
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    hdl: 10419/208301
    Schriftenreihe: Working paper series / European Central Bank ; no 2267 (April 2019)
    Umfang: 1 Online-Ressource (circa 57 Seiten), Illustrationen
  11. Network structures and entry into platform markets
    Autor*in: Zhu, Feng; Li, Xinxin; Valavi, Ehsan; Iansiti, Marco
    Erschienen: [2018]
    Verlag:  Harvard Business School, [Boston, MA]

    Digital technologies have led to the emergence of many platforms in our economy today. In certain platform networks, buyers in one market purchase services from providers in many other markets, whereas other platform networks may comprise local... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Digital technologies have led to the emergence of many platforms in our economy today. In certain platform networks, buyers in one market purchase services from providers in many other markets, whereas other platform networks may comprise local clusters in which buyers primarily purchase services from providers within the same cluster. Consequently, network interconnectivity varies across different industries. We examine how network interconnectivity affects interactions between an incumbent platform serving multiple markets and an entrant platform seeking to enter one of these markets. Our model yields several interesting results. First, even if the entrant can advertise at no cost, it still may not want to make every user in a local market aware of its service, as doing so may trigger a competitive response from the incumbent. Second, having more mobile buyers, which increases interconnectivity between markets, can reduce the incumbent's incentive to fight and, thus, increase the entrant's incentive to expand. Third, stronger interconnectivity between markets may or may not make the incumbent more defensible: when advertising is not costly and mobile buyers consume in both their local markets and the markets they visit, a large number of mobile buyers will increase the entrant's profitability, thereby making it difficult for the incumbent to deter entry. However, when advertising is costly or mobile buyers only consume in the markets they travel to, a large number of mobile buyers will help the incumbent deter entry. When advertising cost is at an intermediate level, the entrant prefers a market with moderate interconnectivity between markets. Fourth, we find that even if advanced targeting technologies can enable the entrant to also advertise to mobile buyers, the entrant may choose not to do so in order to avoid triggering then incumbent's competitive response. Finally, we find that the presence of network effects is likely to decrease the entrant's profit. Our results offer managerial implications for platform firms and help understand their performance heterogeneity

     
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    Schriftenreihe: Working paper / Harvard Business School ; 19, 062
    Harvard Business School Technology & Operations Mgt. Unit Working Paper ; No. 19-062
    Umfang: 1 Online-Ressource (circa 42 Seiten), Illustrationen
  12. Marketplace scalability and strategic use of platform investment
    Autor*in: Li, Jin; Pisano, Gary P.; Zhu, Feng
    Erschienen: [2018]
    Verlag:  Harvard Business School, [Boston, MA]

    The scalability of a marketplace depends on the operations of the marketplace platform as well as its sellers' cost structures and capacities. When fixed costs of entry are high, sellers with small capacities may be deterred from entering the market... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    The scalability of a marketplace depends on the operations of the marketplace platform as well as its sellers' cost structures and capacities. When fixed costs of entry are high, sellers with small capacities may be deterred from entering the market because of their inability to leverage economies of scale. In this study, we explore one strategy that a marketplace platform can use to enhance its scalability: providing an ancillary service to sellers to reduce their fixed costs. In our model, a platform can choose whether and when to provide this service to sellers. When the platform provides the service, it encourages the entry of small sellers. However, it diminishes large sellers' incentives to make their own investment, thus reducing their potential output. When the output reduction by the large sellers is substantial, the platform may not want to provide the ancillary service even if it could do so at no cost. To encourage entry while mitigating output reduction, the platform may choose to strategically delay providing the service

     
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    Schriftenreihe: Working paper / Harvard Business School ; 19, 063
    Harvard Business School Technology & Operations Mgt. Unit Working Paper ; No. 19-063
    Schlagworte: Electronic Commerce; Strategisches Management; Skalenertrag; Dienstleistung; Markteintritt
    Umfang: 1 Online-Ressource (circa 36 Seiten), Illustrationen
  13. Foreign-currency exposures and the financial channel of exchange rates
    eroding monetary policy autonomy in the Asia and Pacific region?
    Autor*in: Georgiadis, Georgios; Zhu, Feng
    Erschienen: [2020]
    Verlag:  Asian Development Bank Institute, Tokyo, Japan

    Foreign-currency exposures on an economy's external balance sheet may jeopardize financial stability when the exchange rate depreciates. In fact, theory suggests that in such an environment it may be optimal for monetary policy in a floating regime... mehr

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    Foreign-currency exposures on an economy's external balance sheet may jeopardize financial stability when the exchange rate depreciates. In fact, theory suggests that in such an environment it may be optimal for monetary policy in a floating regime to reduce exchange rate variation in order to dampen financial cycles by mimicking foreign monetary policy rather than focusing exclusively on stabilizing macroeconomic fundamentals. We explore whether there is evidence in the data for economies facing such a trade-off between financial stability and macroeconomic stabilization that gives rise to fear of floating. In a panel data set for the time period from 2002 to 2012 and 10 small open economies with floating regimes in the Asia and Pacific region we document evidence that is consistent with fear of floating, i.e., that local mimics base-country monetary policy even after controlling for macroeconomic fundamentals. Importantly, we find that this fear of floating is particularly pronounced in the presence of foreign-currency exposures. Specifically, fear of floating is stronger when the foreign-currency exposures arise through debt rather than nondebt instruments, which is consistent with existing evidence documenting that these instruments are more fickle and sensitive to swings in investor sentiment. Moreover, the evidence for fear of floating is stronger when base-country monetary policy is tightened, suggesting that monetary policy tends to act to address immediate threats to financial stability in the face of depreciation pressures rather than to preemptively mitigate the buildup of foreign-currency exposures when the currency is appreciating.

     
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    hdl: 10419/238474
    Schriftenreihe: ADBI working paper series ; no. 1117 (April 2020)
    Umfang: 1 Online-Ressource (circa 20 Seiten)
  14. Gender inequality in research productivity during the COVID-19 pandemic
    Autor*in: Cui, Ruomeng; Ding, Hao; Zhu, Feng
    Erschienen: [2020]
    Verlag:  Harvard Business School, [Boston, MA]

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    Schriftenreihe: Working paper / Harvard Business School ; 20, 129
    Umfang: 1 Online-Ressource (circa 19 Seiten), Illustrationen
  15. Antitrust platform regulation and entrepreneurship
    evidence from China
    Autor*in: Rong, Ke; Sokol, D. Daniel; Zhou, Di; Zhu, Feng
    Erschienen: [2024]
    Verlag:  [Harvard Business School], [Boston, MA]

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    Schriftenreihe: Working paper / Harvard Business School ; 24, 039
    Schlagworte: Platform; Antitrust; Regulation; Competition; Venture Capital
    Umfang: 1 Online-Ressource (circa 29 Seiten), Illustrationen
  16. Threat of platform-owner entry and complementor responses
    evidence from the mobile app market
    Autor*in: Wen, Wen; Zhu, Feng
    Erschienen: [2017]
    Verlag:  Harvard Business School, [Boston, MA]

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    Schriftenreihe: Working paper / Harvard Business School ; 18, 036
    Umfang: 1 Online-Ressource (circa 36 Seiten)
  17. Trust and disintermediation
    evidence from an online freelance marketplace
    Autor*in: Gu, Yuan; Zhu, Feng
    Erschienen: [2018]
    Verlag:  Harvard Business School, [Boston, MA]

    As an intermediary improves trust between two sides of its market to facilitate matching and transactions, it faces an increased risk of disintermediation: with sufficient trust, the two sides may circumvent the intermediary to avoid the... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    As an intermediary improves trust between two sides of its market to facilitate matching and transactions, it faces an increased risk of disintermediation: with sufficient trust, the two sides may circumvent the intermediary to avoid the intermediary's fees. We investigate the relationship between increased trust and disintermediation by leveraging a randomized control trial on a major online freelance marketplace. Our results show that enhanced trust increases the chance for high-quality freelancers to be hired. When the trust level is sufficiently high, however, it also increases disintermediation, which offsets the revenue gains from the increase in the hiring of high-quality freelancers. We also identify heterogeneity across clients and freelancers in their tendencies to disintermediate

     
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    Schriftenreihe: Working paper / Harvard Business School ; 18, 103
    Harvard Business School Technology & Operations Mgt. Unit Working Paper ; No. 18-103
    Umfang: 1 Online-Ressource (circa 35 Seiten), Illustrationen
  18. Corporate capture of blockchain governance
    Autor*in: Ferreira, Daniel Bernardo Soares; Li, Jin; Nikolowa, Radoslawa
    Erschienen: [2019]
    Verlag:  School of Economics and Finance, Queen Mary University of London, London

    We develop a theory of blockchain governance. In our model, the proof-of-work system, which is the most common set of rules for validating transactions in blockchains, creates an industrial ecosystem with specialized suppliers of goods and services.... mehr

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    We develop a theory of blockchain governance. In our model, the proof-of-work system, which is the most common set of rules for validating transactions in blockchains, creates an industrial ecosystem with specialized suppliers of goods and services. We analyze the two-way interactions between blockchain governance and the market structure of the industries in the blockchain ecosystem. Our main result is that the proof-of-work system leads to a situation where the governance of the blockchain is captured by a large firm.

     
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    hdl: 10419/210437
    Schriftenreihe: Working paper / School of Economics and Finance, Queen Mary University of London ; no. 880 (January 2019)
    Umfang: 1 Online-Ressource (circa 48 Seiten), Illustrationen
  19. Mapping shadow banking in China
    structure and dynamics
    Autor*in: Ehlers, Torsten; Kong, Steven; Zhu, Feng
    Erschienen: February 2018
    Verlag:  Bank for International Settlements, Monetary and Economic Department, [Basel]

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    Medientyp: Buch (Monographie)
    Format: Online
    Schriftenreihe: BIS working papers ; no 701
    Umfang: 1 Online-Ressource (circa 42 Seiten), Illustrationen
  20. Ideological segregation among online collaborators
    evidence from Wikipedians
    Autor*in: Greenstein, Shane M.; Gu, Yuan; Zhu, Feng
    Erschienen: [2017]
    Verlag:  Harvard Business School, [Boston, MA]

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    Schriftenreihe: Working paper / Harvard Business School ; 17, 028
    Umfang: 1 Online-Ressource (circa 49 Seiten), Illustrationen
  21. Multi-homing and platform strategies
    historical evidence from the U.S. newspaper industry
    Autor*in: Park, K. Francis; Seamans, Robert; Zhu, Feng
    Erschienen: [2017]
    Verlag:  Harvard Business School], [Boston, MA

    We examine how heterogeneity in customers' multi-homing tendencies affects a platform's response to new entrants in its market. We develop a formal model to generate empirical predictions and then test them leveraging a historical setting: TV... mehr

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    We examine how heterogeneity in customers' multi-homing tendencies affects a platform's response to new entrants in its market. We develop a formal model to generate empirical predictions and then test them leveraging a historical setting: TV broadcast station entry into local newspaper markets from 1945–1963. We show that after a TV station enters the newspaper market, newspaper firms with more multi-homing consumers had higher subscription prices, circulation, and ad rates. These results suggest that heterogeneity in customer multi-homing is a significant factor that can moderate platforms' competitive strategies

     
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    Schriftenreihe: Working paper / Harvard Business School ; 18, 032
    Harvard Business School Technology & Operations Mgt. Unit Working Paper ; No. 18-032
    Umfang: 1 Online-Ressource (circa 41 Seiten), Illustrationen
  22. China's land-use changes during the past 300 years
    a historical perspective
    Autor*in: Miao, Lijuan; Zhu, Feng; Sun, Zhanli; Moore, John C.; Cui, Xuefeng
    Erschienen: 2016
    Verlag:  ZBW, [Kiel

    Understanding the processes of historical land-use change is crucial to the research of global environmental sustainability. Here we examine and attempt to disentangle the evolutionary interactions between land-use change and its underlying causes... mehr

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    Understanding the processes of historical land-use change is crucial to the research of global environmental sustainability. Here we examine and attempt to disentangle the evolutionary interactions between land-use change and its underlying causes through a historical lens. We compiled and synthesized historical land-use change and various biophysical, political, socioeconomic, and technical datasets, from the Qing dynasty to modern China. The analysis reveals a clear transition period between the 1950s and the 1980s. Before the 1950s, cropland expanded while forested land diminished, which was also accompanied by increasing population; after the 1980s land-use change exhibited new characteristics: changes in cropland, and decoupling of forest from population as a result of agricultural intensification and globalization. Chinese political policies also played an important and complex role, especially during the 1950s-1980s transition periods. Overall, climate change plays an indirect but fundamental role in the dynamics of land use via a series of various cascading effects such as shrinking agricultural production proceeding to population collapse and outbreaks of war. The expected continuation of agricultural intensification this century should be able to support increasing domestic demand for richer diets, but may not be compatible with long-term environmental sustainability.

     
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    hdl: 10419/171306
    Übergeordneter Titel: Sonderdruck aus: International Journal of Environmental Research and Public Health; Vol. 13 (2016) Iss. 9, pp 1-16
    Umfang: 1 Online-Ressource (circa 17 Seiten), Illustrationen
  23. What is the impact of software patent shifts ?
    Evidence from Lotus v. Borland
    Autor*in: Lerner, Joshua; Zhu, Feng
    Erschienen: 2005
    Verlag:  National Bureau of Economic Research, Cambridge, Mass.

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    Schriftenreihe: NBER working paper series ; 11168
    Schlagworte: IT-Recht
    Umfang: 35 S
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    Internetausg.: papers.nber.org/papers/w11168.pdf - lizenzpflichtig
  24. A nonparametric analysis of the shape dynamics of the US personal income distribution: 1962 - 2000
    Autor*in: Zhu, Feng
    Erschienen: 2005
    Verlag:  Bank for Internat. Settlements, Basel

    "We provide stylized facts on the evolving shape dynamics of the US personal income distribution from 1962 to 2000. Based on adaptive kernel density estimation, we propose an adaptive bootstrap test for multimodality. Our results indicate that... mehr

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    "We provide stylized facts on the evolving shape dynamics of the US personal income distribution from 1962 to 2000. Based on adaptive kernel density estimation, we propose an adaptive bootstrap test for multimodality. Our results indicate that multimodality has been a predominant feature of the US income distribution. Both the number and location of modes change over time, revealing rich distributional dynamics and strong heterogeneity. Decomposing the sample by age, education, gender and race, all groups exhibit multiple modes and follow distinct distributional patterns. For all groups and for the population as a whole, income distribution improved over the 1960s, 1970s and 1980s, but deteriorated dramatically in the 1990s

     
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    Schriftenreihe: BIS working papers ; 184
    Schlagworte: Nichtparametrisches Verfahren; Einkommensverteilung; USA; Bootstrap-Verfahren; Adaptive kernel method
    Umfang: 34 S, graph. Darst
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  25. The fragility of the Phillips curve
    a bumpy ride in the frequency domain
    Autor*in: Zhu, Feng
    Erschienen: 2005
    Verlag:  Bank for Internat. Settlements, Basel

    "We provide a robustness check of the US Phillips curve in the frequency domain. We design frequency-specific coeffcients of correlation (FSCC) and regression (FSCR), based on our frequency-specific data extraction procedure. Being real-valued,... mehr

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    "We provide a robustness check of the US Phillips curve in the frequency domain. We design frequency-specific coeffcients of correlation (FSCC) and regression (FSCR), based on our frequency-specific data extraction procedure. Being real-valued, signed and normalised, the FSCC is superior to traditional indicators such as coherence and cospectrum. Our FSCC and FSCR estimates suggest that the Phillips tradeoffs vary greatly across frequencies, with frequent sign reversals. They seem to be stable in higher frequencies, but unstable in low and medium frequencies, and they are sensitive to the level and boundaries of frequency aggregation, to the way data are processed prior to analysis (eg detrending) and to the type of variables used. In this sense, the Phillips curves are fragile. The impact of potential cross-frequency model inconsistency on model estimation using conventional time domain methods needs careful scrutiny

     
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    Schriftenreihe: BIS working papers ; 183
    Schlagworte: Phillips-Kurve; Konjunktur; Regressionsanalyse; Korrelation; Phillips curve
    Umfang: 41 S, graph. Darst
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