Connectivity Costs and Price Efficiency: An Event Study

2020 ◽  
Author(s):  
Alex Frino ◽  
Ognjen Kovacevic ◽  
Vito Mollica ◽  
Robert I. Webb
Keyword(s):  
Event Study ◽  
Price Efficiency

Connectivity costs and price efficiency: An event study

2021 ◽  
Author(s):  
Alex Frino ◽  
Ognjen Kovacevic ◽  
Vito Mollica ◽  
Robert I. Webb
Keyword(s):  
Event Study ◽  
Price Efficiency

scholarly journals The R^2 and the Seven Events in Hong Kong: A New Look at Return Synchronicity and Price Efficiency

2018 ◽  
Author(s):  
Jinghan Cai ◽  
Fengyun Li ◽  
Iordanis Petsas
Keyword(s):  
Hong Kong ◽  
Event Study ◽  
Difference In Difference ◽  
Price Efficiency ◽  
Standard Difference ◽  
Alternative Methodology ◽  
The Relationship ◽  
Study Setting ◽  
Traditional Understanding ◽  
New Look

This paper identifies a dilemma in the relationship between R^2 and price efficiency: After comprehensively studying the R^2 change around 7 well-known corporate events, neither the traditional understanding of R^2 as price inefficiency, nor the behavioral way of R^2 as price efficiency can explain the observed R^2 change around the events. We adopt an alternative methodology to replace the standard difference-in-difference regression and directly decompose the R^2 change. We find that, due to the endogeneity of events, the changes of R^2 are over-estimated. We further propose that in the event study setting, the R^2 change may be simply the consequence of the inflow/outflow of some trend-chasing investors, and it may be detached from price (in) efficiency. Empirical evidences are consistent with this hypothesis.

Długookresowy wpływ połączeń przedsiębiorstw na wartość spółek przejmujących

2010 ◽  
pp. 33-36
Author(s):  
Leszek Czerwonka
Keyword(s):  
Event Study

Przedsiębiorstwa jako drogę wzrostu często wybierają transakcje połączeń z innymi podmiotami rynkowymi. Transakcje te wpływają na przyszłe zyski przedsiębiorstw, a przez to na cenę spółek. Celem opracowania jest analiza wpływu transakcji połączeń na wartość spółek przejmujących, notowanych na warszawskiej Giełdzie Papierów Wartościowych, w okresie 3 lat po ogłoszeniu transakcji. Badania dokonano metodą analizy zdarzeń (event study), w ramach której dokonano oceny wpływu ogłoszenia fuzji na nadzwyczajne stopy zwrotu z akcji BHAR. (abstrakt oryginalny)

The Determinants of Merger Withdrawals’ Abnormal Returns in The Australian Market

2015 ◽  
pp. 89-110 ◽  
Author(s):  
Thuy Nguyen Thu ◽  
Giang Dao Thi Thu ◽  
Hoang Truong Huy
Keyword(s):  
Financial Crisis ◽  
Event Study ◽  
Abnormal Returns ◽  
Market Response ◽  
Crisis Period ◽  
Valuation Effects ◽  
Event Study Method ◽  
Private And Public ◽  
Method Of Payment ◽  
The Impact

This paper examines the abnormal returns in merger withdrawals in Australia, especially distinguishing the market response between private and public targets. We also study the determinants of those abnormal returns, including the method of payment and the impact of financial crisis periods. Using the event study method, we document that in the Australian context, the announced withdrawal of mergers involving private targets creates significantly negative valuation effects in comparison with the valuation effects in withdrawal of mergers involving public targets. We also find that a financial crisis period strongly affects abnormal returns of merger withdrawals. However, the method of payment does not have any impact on the abnormal returns.

Reaksi Investor Saham Syariah dan Konvensional terhadap Pengumuman Pembentukan Kabinet Indonesia Maju 2019

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Ananta Hagabean Nasution ◽  
Alyta Shabrina Zusryn
Keyword(s):  
Event Study ◽  
Abnormal Return ◽  
Average Abnormal Return

Ketidakpastian politik sering menjadi peristiwa khusus yang berpengaruh terhadap return portofolio saham. Tujuan dari penelitian ini adalah untuk menguji pengaruh pengumuman pembentukan kabinet Indonesia Maju 2019-2024 terhadap harga saham yang terdaftar pada Indeks Syariah (ISSI) dan Indeks Harga Saham Gabungan (IHSG). Penelitian ini menggunakan metode event study untuk melihat adanya reaksi pasar yang dapat dilihat dari adanya abnormal return pada saham. Indikator yang digunakan adalah nilai average abnormal return (AAR) dan cumulative average abnormal return (CAAR). Hasil pada penelitian ini menunjukkan bahwa terdapat nilai AAR yang negatif dan signifikan pada sehari sebelum (t-1) dan setelah (t+1) pengumuman menteri pada indeks syariah dan pasar. Selain itu, terdapat perbedaan yang signifikan nilai cumulative average abnormal return (CAAR) sebelum dan sesudah pengumuman menteri pada t (-7,7) untuk portofolio ISSI dan t (-10,10) untuk portofolio IHSG. Adanya reaksi negatif invetor mengindikasikan terdapat kebingungan investor saham syariah terhadap menteri yang terpilih pada kabinet Indonesia Maju. Peristiwa ini diharapkan dapat membantu investor atau manajer investasi dalam menentukan strategi investasi pada saat terjadi ketidakpastian politik.

META-ANALYSIS ON AMERICAN PRESIDENTIAL ELECTION - 2016 AND AMERICAN STOCK MARKET

2020 ◽  
Vol 38 (1) ◽  
Author(s):  
Farhan Ahmed ◽  
Salman Bahoo ◽  
Sohail Aslam ◽  
Muhammad Asif Qureshi
Keyword(s):  
Content Analysis ◽  
Stock Market ◽  
Event Study ◽  
Presidential Election ◽  
Republican Party ◽  
Stock Exchange ◽  
Meta Analysis ◽  
Composite Index ◽  
Stock Index ◽  
Political Event

This paper aims to analyze the efficient stock market hypothesis as responsive to American Presidential Election, 2016. The meta-analysis has been done combining content analysis and event study methodology. The all major newspapers, news channels, public polls, literature and five important indices as Dow Jones Industrial Average (DJIA), NASDAQ Stock Market Composit Indexe (NASDAQ-COMP), Standard & Poor's 500 Index (SPX-500), New York Stock Exchange Composite Index (NYSE-COMP) and Other U.S Indexes-Russell 2000 (RUT-2000) are critically examined and empirically analyzed. The findings from content analysis reflect that stunned winning of Mr Trump from Republican Party worked as shock for American stock market. From event study, findings confirmed that all the major indices reflected a decline on winning of Trump and losing of Ms. Clinton from Democratic. The results are supported empirically and practically through the political event like BREXIT that resulted in shock to Global stock index and loss of $2 Trillion.

ANALISIS PENGARUH SEBELUM DAN SETELAH STOCK SPLIT TERHADAP LIKUIDITAS SAHAM DAN DAMPAKNYA TERHADAP RETURN SAHAM (Survei Pada Perusahaan Yang Terdaftar di Bursa Efek Indonesia Tahun 2005-2015)

2017 ◽  
Vol 9 (2) ◽  
pp. 9-20
Author(s):  
Surtikanti - ◽  
Erwin Indra Kusumah
Keyword(s):  
Event Study ◽  
Stock Split

Pasar modal dibangun dengan tujuan menggerakkan perekonomian suatu negara melalui kekuatanswasta dan mengurangi beban negara. Investasi merupakan penundaan konsumsi pada saat inidengan tujuan mendapatkan tingkat pengembalian (return) yang akan diterima di masa yang akandatang. Stock split dibuat untuk menambah likuiditas pergerakan saham dan memungkinkan investorritel masuk lebih banyak sehingga aktivitas volume perdagangan lebih meningkat. Fenomena yangterjadi dibeberapa perusahan yang terdaftar di Bursa Efek Indonesia dibawah ini melakukan stocksplit dengan tujuan agar sahamnya menjadi likuid atau aktivitas volume perdagangan (trading volumeactivity) sahamnya makin besar setelah melakukan stock split, ternyata hal ini di Bursa EfekIndonesia tidak terjadi. Metode yang digunakan dalam penelitian ini adalah metode explonatorysurvey yang berdasarkan pada studi peristiwa (event study). Dengan menggunakan dua alat analisisyaitu analisis komparatif dan analisis jalur. Hasil penelitian menunjukkan bahwa terdapat perbedaanyang tidak signifikan pada likuiditas saham dan return saham sebelum dan setelah stock split terjadi.Sedangkan stock split berpengaruh signifikan terhadap likuiditas saham. Likuditas sahamberpengaruh signifikan terhadap return saham. Jadi stock split melalui likuiditas saham berpengaruhsignifikan terhadap return saham.   

PENERAPAN PENDUGAAN EFISIENSI ALOKATIF PADA USAHATANI BUNCIS (Phaseolus vulgaris, L)

2020 ◽  
Vol 21 (1) ◽  
pp. 81-90
Author(s):  
Marthen Robinson Pellokila
Keyword(s):  
Production Function ◽  
Allocative Efficiency ◽  
Maximum Output ◽  
Phaseolus Vulgaris L ◽  
Land Area ◽  
Price Efficiency ◽  
Efficiency Estimation ◽  
Area Use ◽  
A Company ◽  
Douglas Production Function

ABTRACT Efficiency is one of the important indicators to assess the performance of a company or farm. Efficiency guarantees the use of certain inputs to achieve maximum output levels (technical efficiency) and also efficiency ensures the use of certain inputs that maximize profits (price efficiency or allocative efficiency). This article discusses the application of the estimation of price efficiency / allocative efficiency of the use of production inputs in bean farming using the linearized Cobb-Douglas Production function. The results of the analysis shows that the application of price efficiency estimation for production inputs using the Cobb-Douglas production function is satisfactory as long as the classical assumptions required by the multiple regression are fulfilled. Of the five production inputs included in the model, only one production input provides a significant value to production, namely the production input for the land area use. Thus, only the production input for land area use is estimated at the value of its price efficiency. Based on the results of the analysis, it is found that the use of production inputs for land area use has not yet reached its price efficiency.

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