Senay Agca

Dr. Senay Agca

Department of Finance, George Washington University, Washington DC 20052, USA

Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2022 in Management Science
Verified
Journal Article
Closed access
SASenay Agca
Senay Agca
VBVolodymyr Babich
Volodymyr Babich
John BirgeJohn Birge
John Birge
JWJing Wu
Jing Wu
Using a panel of credit default swap (CDS) spreads and supply chain links, we observe that both favorable and unfavorable credit shocks propagate through supply chains in the CDS market. Particularly, the three-day cumulative abnormal CDS spread change (CASC) is 63 basis points for firms whose customers experienced a CDS up-jump event (an adverse credit shock). The value is 74 basis points if their suppliers experienced a CDS up-jump event. The corresponding three-day CASC values are –36 and –38 basis points, respectively, for firms whose customers and suppliers, respectively, experienced an extreme CDS down-jump event (a favorable credit shock). These effects are approximately twice as large for adverse credit shocks originating from natural disasters. Credit shock propagation is absent in inactive supply chains and is amplified if supply chain partners are followed by the same analysts. Industry competition and financial linkages between supply chain partners, such as trade credit and large sales exposure, amplify the shock propagation along supply chains. Strong shock propagation persists through second and third supply chain tiers for adverse shocks but attenuates for favorable shocks. This paper was accepted by Kay Giesecke, finance.

1 February 2008 in Journal of Banking & Finance
Verified
Journal Article
Closed access
SASenay Agca
Senay Agca
AMAbon Mozumdar
Abon Mozumdar

1 September 2012 in Journal of International Economics
Verified
Journal Article
Closed access
SASenay Agca
Senay Agca
OCOya Celasun
Oya Celasun

1 December 2023 in Production and Operations Management
Verified
Journal Article
Open access
SASenay Agca
Senay Agca
John BirgeJohn Birge
John Birge
ZWZi'ANg Wang
Zi'ANg Wang
JWJing Wu
Jing Wu
While global supply chains provide firms with a buffer against local shocks, they expose firms to multiregional risks. The COVID‐19 pandemic and its differential impact on different regions in the world offer an opportunity to explore these effects. We investigate the multiregional supply chain risk by focusing on credit risk measured by abnormal credit default swaps (CDS) spreads and US–China supply chain networks. Our evidence shows that local risks propagate through global supply chains to other regions. Using a matched sample, we find that abnormal CDS spreads for firms with Chinese supply chain partners increase by 12% to 13% relative to the average raw CDS spreads due to supply chain disruptions during the economic shutdown in China, and the abnormal CDS spreads decrease by 9% to 13% relative to the average raw CDS spreads when the supply chain activities resume in China. We also find that having a more global customer base can mitigate the effects of local household demand shocks. Lastly, we discover that firm size, supply chain network centrality, cash holdings, inventory, strong credit ratings, capital redeployability, and the number of segments increase resilience to global supply chain shocks, while financial leverage, operational leverage, and market competition weaken supply chain resilience.

24 May 2017 in Journal of Financial and Quantitative Analysis
Verified
Journal Article
Closed access
PDF file
SASenay Agca
Senay Agca
AMAbon Mozumdar
Abon Mozumdar
We examine whether internal funds matter for investment when the measurement error inqis addressed. By carefully employing methodologies that tackle the measurement error inq, we show that cash flow is a significant determinant of investment. We also find that an analyst-forecast-basedqmeasure is not superior to a stock-market-basedqmeasure. We further propose an approach that uses two alternative proxies ofqas instruments for addressing measurement error. Our evidence indicates that instrumental-variables-type generalized method of moments estimators yield empirically well-specified models.

1 December 2013 in Emerging Markets Review
Verified
Journal Article
Closed access
SASenay Agca
Senay Agca
GNGianni De Nicolò
Gianni De Nicolò
EDEnrica Detragiache
Enrica Detragiache